A mortal sin (), in
Christian theology
Christian theology is the theology – the systematic study of the divine and religion – of Christianity, Christian belief and practice. It concentrates primarily upon the texts of the Old Testament and of the New Testament, as well as on Ch ...
, is a gravely
sin
In religious context, sin is a transgression against divine law or a law of the deities. Each culture has its own interpretation of what it means to commit a sin. While sins are generally considered actions, any thought, word, or act considered ...
ful act which can lead to
damnation
Damnation (from Latin '' damnatio'') is the concept of divine punishment after death for sins that were committed, or in some cases, good actions not done, on Earth.
In Ancient Egyptian religious tradition, it was believed that citizens woul ...
if a person does not
repent of the
sin
In religious context, sin is a transgression against divine law or a law of the deities. Each culture has its own interpretation of what it means to commit a sin. While sins are generally considered actions, any thought, word, or act considered ...
before death. It is alternatively called deadly, grave, and serious; the concept of mortal sin is found in both
Catholicism
The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
and
Lutheranism
Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched ...
.
A sin is considered to be "mortal" when its quality is such that it leads to a separation of that person from
God
In monotheistic belief systems, God is usually viewed as the supreme being, creator, and principal object of faith. In polytheistic belief systems, a god is "a spirit or being believed to have created, or for controlling some part of the un ...
's saving
grace
Grace may refer to:
Places United States
* Grace, Idaho, a city
* Grace (CTA station), Chicago Transit Authority's Howard Line, Illinois
* Little Goose Creek (Kentucky), location of Grace post office
* Grace, Carroll County, Missouri, an uni ...
. Three conditions must together be met for a sin to be mortal: "Mortal sin is sin whose object is grave matter and which is also committed with full knowledge and deliberate consent." The
sin against the Holy Spirit and the
sins that cry to Heaven for vengeance are considered especially serious.
This type of sin is distinguished from a
venial sin
According to Catholicism, a venial sin is a lesser sin that does not result in a complete separation from God and eternal damnation in Hell as an unrepented mortal sin would. A venial sin consists in acting as one should not, without the actual in ...
in that the latter simply leads to a weakening of a person's relationship with God. Despite its gravity, a person can repent of having committed a mortal sin. Such repentance is the primary requisite for forgiveness and
absolution
Absolution is a theological term for the forgiveness imparted by ordained Priest#Christianity, Christian priests and experienced by Penance#Christianity, Christian penitents. It is a universal feature of the historic churches of Christendom, alth ...
.
Teaching on absolution from sins is varied somewhat throughout Christian denominations. The teaching for Catholics on the sacrament of confession and the act of contrition for absolution was declared a mandatory catholic belief in the
Council of Trent
The Council of Trent (), held between 1545 and 1563 in Trent (or Trento), now in northern Italy, was the 19th ecumenical council of the Catholic Church. Prompted by the Protestant Reformation at the time, it has been described as the "most ...
. Confession and Absolution is practiced in Lutheran churches, with it being historically held on Saturdays in preparation for Mass on the Lord's Day (Sunday).
Concept origins
New Testament
The term ''mortal sin'' is thought to be derived from the
New Testament
The New Testament (NT) is the second division of the Christian biblical canon. It discusses the teachings and person of Jesus in Christianity, Jesus, as well as events relating to Christianity in the 1st century, first-century Christianit ...
of the
Bible
The Bible is a collection of religious texts that are central to Christianity and Judaism, and esteemed in other Abrahamic religions such as Islam. The Bible is an anthology (a compilation of texts of a variety of forms) originally writt ...
. Specifically, it has been suggested by Jimmy Buehler from Theocast that the term comes from
1 John 5:16–17.
In this particular verse, the author of the epistle writes "There is a sin that leads to death."
[
]
Fathers of the Church
The concept of mortal sin is hinted at in some works of the early Fathers of the Church
The Church Fathers, Early Church Fathers, Christian Fathers, or Fathers of the Church were ancient and influential Christian theologians and writers who established the intellectual and doctrinal foundations of Christianity. The historical per ...
and explicit in others.
In AD 385, Pacian of Barcelona, in his ''Sermon Exhorting to Penance'', gives contempt of God, murder, and fornication as examples of "mortal" or "capital sins".
In AD 393, St. Jerome writes:
Catholicism
In the moral theology
Ethics involves systematizing, defending, and recommending concepts of right and wrong behavior.''Internet Encyclopedia of Philosophy''"Ethics" A central aspect of ethics is "the good life", the life worth living or life that is simply satisfyin ...
of Catholicism
The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
, a mortal sin
In religious context, sin is a transgression against divine law or a law of the deities. Each culture has its own interpretation of what it means to commit a sin. While sins are generally considered actions, any thought, word, or act considered ...
requires that all of the following conditions are met:
# Its subject matter must be grave. (The term ''grave sin'' is used at times to indicate grave matter, and at times to indicate mortal sin. But it always remains true that the following two conditions are requisite for mortal sin.)
# It must be committed with full knowledge (and awareness) of the sinful action and the gravity of the offense.
# It must be committed with deliberate and complete consent.
The ''Catechism of the Catholic Church
The ''Catechism of the Catholic Church'' (; commonly called the ''Catechism'' or the ''CCC'') is a reference work that summarizes the Catholic Church's doctrine. It was Promulgation (Catholic canon law), promulgated by Pope John Paul II in 1992 ...
'' defines ''grave matter'':
Although the Church itself does not provide a precise list of grave sins or divide actions into grave and venial categories, Church documents do name certain "grave sins" as well as "offenses" and "actions" whose subject-matter is considered to be grave. For example, in the area of human sexuality
Human sexuality is the way people experience and express themselves sexually. This involves biological, psychological, physical, erotic, emotional, social, or spiritual feelings and behaviors. Because it is a broad term, which has varied ...
, the ''Catechism of the Catholic Church'' notes that the following actions can involve increased gravity: extramarital sex
Extramarital sex occurs when a married person engages in sexual activity with someone other than their spouse. The term may be applied to the situation of a single person having sex with a married person. It is distinguished from premarital sex ...
, divorce
Divorce (also known as dissolution of marriage) is the process of terminating a marriage or marital union. Divorce usually entails the canceling or reorganising of the legal duties and responsibilities of marriage, thus dissolving the M ...
(but not legitimate separation), and masturbation
Masturbation is a form of autoeroticism in which a person Sexual stimulation, sexually stimulates their own Sex organ, genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm. Stimulation may involve the use of han ...
. The sins against the Holy Spirit and the sins that cry to Heaven for vengeance are considered especially serious. Further, Pope Francis
Pope Francis (born Jorge Mario Bergoglio; 17 December 1936 – 21 April 2025) was head of the Catholic Church and sovereign of the Vatican City State from 13 March 2013 until Death and funeral of Pope Francis, his death in 2025. He was the fi ...
and many bishop
A bishop is an ordained member of the clergy who is entrusted with a position of Episcopal polity, authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance and administration of di ...
s privately regard certain sins as mortal, for example child abuse or neglect of one's parents.
With respect to a person's full knowledge of a certain act being a grave sin, the Catholic Church teaches that "unintentional ignorance can diminish or even remove the imputability of a grave offense. But no one is deemed to be ignorant of the principles of the moral law, which are written in the conscience of every man. The promptings of feelings and passions can also diminish the voluntary and free character of the offense, as can external pressures or pathological disorders (mental illness
A mental disorder, also referred to as a mental illness, a mental health condition, or a psychiatric disability, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. A mental disorder is ...
). Sin committed through malice, by deliberate choice of evil, is the gravest." Furthermore, Catholic teaching also holds that "imputability and responsibility for an action can be diminished or even nullified by ignorance, inadvertence, duress, fear, habit, inordinate attachments, and other psychological or social factors."
Mortal sins must be confessed by naming the specific offence along with how many times it was committed.
According to the Catholic Church, no person can receive the Eucharist
The Eucharist ( ; from , ), also called Holy Communion, the Blessed Sacrament or the Lord's Supper, is a Christianity, Christian Rite (Christianity), rite, considered a sacrament in most churches and an Ordinance (Christianity), ordinance in ...
when in a state of mortal sin:
Some mortal sins cause automatic excommunication by the very deed itself, for example renunciation of faith and religion, known as apostasy
Apostasy (; ) is the formal religious disaffiliation, disaffiliation from, abandonment of, or renunciation of a religion by a person. It can also be defined within the broader context of embracing an opinion that is contrary to one's previous re ...
, desecration of the Eucharist
The Eucharist ( ; from , ), also called Holy Communion, the Blessed Sacrament or the Lord's Supper, is a Christianity, Christian Rite (Christianity), rite, considered a sacrament in most churches and an Ordinance (Christianity), ordinance in ...
ic species, and "a completed abortion
Abortion is the early termination of a pregnancy by removal or expulsion of an embryo or fetus. Abortions that occur without intervention are known as miscarriages or "spontaneous abortions", and occur in roughly 30–40% of all pregnan ...
". These mortal sins are so serious that the church through law has made them crimes. The church forbids the excommunicated from receiving any sacrament
A sacrament is a Christian rite which is recognized as being particularly important and significant. There are various views on the existence, number and meaning of such rites. Many Christians consider the sacraments to be a visible symbol ...
(not just the Eucharist) and also severely restricts the person's participation in other church liturgical acts and offices. A repentant excommunicated person may talk to a priest, usually in a confessional, about their excommunication to arrange for the remission. Remission cannot be denied to someone who has truly repented their actions and has also made suitable reparation for damages and scandal or at least has seriously promised to do so. However, even if excommunicated, a Catholic who has not been juridically absolved is still, due to the irrevocable nature of baptism, a member of the Catholic Church and therefore must still carry out their obligations of fulfilling their duties of attending Mass
Mass is an Intrinsic and extrinsic properties, intrinsic property of a physical body, body. It was traditionally believed to be related to the physical quantity, quantity of matter in a body, until the discovery of the atom and particle physi ...
, Divine Liturgy
Divine Liturgy () or Holy Liturgy is the usual name used in most Eastern Christian rites for the Eucharistic service.
The Eastern Catholic Churches, Eastern Lutheranism, Eastern Lutheran Churches and the Eastern Orthodox Church believe the Divi ...
, etc. on a Holy Day of Obligation
In the Catholic Church, holy days of obligation or precepts are days on which Christians, Catholic Christians are expected to attend Mass (Catholic Church), Mass, and engage in rest from work and recreation (i.e., they are to refrain from engagin ...
, abstaining from meat on the Fridays of Lent
Lent (, 'Fortieth') is the solemn Christianity, Christian religious moveable feast#Lent, observance in the liturgical year in preparation for Easter. It echoes the 40 days Jesus spent fasting in the desert and enduring Temptation of Christ, t ...
, etc., albeit their communion with the Christ and the church is gravely impaired. "Perpetual penalties cannot be imposed or declared by decree." However, "the following are expiatory penalties which can affect an offender either perpetually".
Since the mid-20th century, some theologians have taught that a person who lives by a constant attitude of charity is unlikely to fall in and out of God's graces without being profoundly aware of the change. The term "fundamental option" arose and is used in a variety of senses.
Pope John Paul II
Pope John Paul II (born Karol Józef Wojtyła; 18 May 19202 April 2005) was head of the Catholic Church and sovereign of the Vatican City State from 16 October 1978 until Death and funeral of Pope John Paul II, his death in 2005.
In his you ...
reaffirmed traditional teaching going back to the Council of Trent in his encyclical , as does the ''Catechism of the Catholic Church
The ''Catechism of the Catholic Church'' (; commonly called the ''Catechism'' or the ''CCC'') is a reference work that summarizes the Catholic Church's doctrine. It was Promulgation (Catholic canon law), promulgated by Pope John Paul II in 1992 ...
'', which states: "The teaching of the Church affirms the existence of hell and its eternity. Immediately after death the souls of those who die in a state of mortal sin descend into hell, where they suffer the punishments of hell, 'eternal fire'." The Catechism then adds: "The chief punishment of hell is eternal separation from God, in whom alone man can possess the life and happiness for which he was created and for which he longs." However, the Catechism does not by name say a specific person is in Hell, but it does say that "our freedom has the power to make choices for ever, with no turning back." Most significantly, the Catechism also proclaims that "There are no limits to the mercy of God". and that "although we can judge that an act is in itself a grave offence, we must entrust judgment of persons to the justice and mercy of God." One cannot see into their mind to know if it was deliberate or committed in full knowledge. Also, like the father in the Parable of the Prodigal Son
The Parable of the Prodigal Son (also known as the parable of the Two Brothers, Lost Son, Loving Father, or of the Forgiving Father; ) is one of the parables of Jesus in the Bible, appearing in Luke 15:11–32. In Luke 15, Jesus tells this sto ...
, God forgives those who repent sincerely. Vatican II
The Second Ecumenical Council of the Vatican, commonly known as the or , was the 21st and most recent Catholic ecumenical councils, ecumenical council of the Catholic Church. The council met each autumn from 1962 to 1965 in St. Peter's Basilic ...
, in its Dogmatic Constitution , reflects the traditional teaching of the church on punishment, and on merit or reward for good deeds.
Mortal sin is ordinarily remitted by the priestly absolution
Absolution is a theological term for the forgiveness imparted by ordained Priest#Christianity, Christian priests and experienced by Penance#Christianity, Christian penitents. It is a universal feature of the historic churches of Christendom, alth ...
in the Sacrament of Penance. However, the effectiveness of the absolution is dependent of the acts of the penitent starting with sorrow for sin or contrition. Perfect contrition, coupled with the firm resolution to sin no more and to make recourse to the sacrament of Penance as soon as possible, can restore a person's relationship with God, as well as God's saving grace, that is, sanctifying grace. This teaching on perfect contrition is a reminder that God's mercy and forgiveness is available outside the Sacrament of Penance, yet also indicates that Catholics who know about Christ's institution of the sacrament of Penance must intend to use it. Any human act that arises from a person's love of God, is inspired by God's prevenient action and is directed to doing as God requires. When perfect contrition is the means by which one seeks to restore one's relationship with God, there must also be a resolution to confess all mortal sins (that have not been confessed and absolved previously) in the Sacrament of Penance.
Eastern Catholic churches
Autonomous, self-governing (), Catholic particular churches and liturgical rites
A particular church () is an ecclesiastical community of followers headed by a Bishop (Catholic Church), bishop (or Hierarchy of the Catholic Church#Equivalents of diocesan bishops in law, equivalent), as defined by Catholic canon law and Catholic ...
in full communion with the Bishop of Rome, the Pope
The pope is the bishop of Rome and the Head of the Church#Catholic Church, visible head of the worldwide Catholic Church. He is also known as the supreme pontiff, Roman pontiff, or sovereign pontiff. From the 8th century until 1870, the po ...
, are known as Eastern Catholic churches
The Eastern Catholic Churches or Oriental Catholic Churches, also known as the Eastern-Rite Catholic Churches, Eastern Rite Catholicism, or simply the Eastern Churches, are 23 Eastern Christian autonomous (''sui iuris'') particular churches of ...
. They derive their theology and spirituality from some of the same sources as the Eastern Orthodox
Eastern Orthodoxy, otherwise known as Eastern Orthodox Christianity or Byzantine Christianity, is one of the three main Branches of Christianity, branches of Chalcedonian Christianity, alongside Catholic Church, Catholicism and Protestantism ...
and Oriental Orthodox
The Oriental Orthodox Churches are Eastern Christianity, Eastern Christian churches adhering to Miaphysitism, Miaphysite Christology, with approximately 50 million members worldwide. The Oriental Orthodox Churches adhere to the Nicene Christian ...
churches, yet use the Latin Catholic distinction between ''mortal'' and ''venial'' sin. However, names other than ''mortal'' and ''venial'' are often used.
Actions constituting grave matter
The following is a partial alphabetical list of actions that are defined as constituting grave matter, according to the ''Catechism of the Catholic Church'' or like sources (such as declarations by the Congregation for the Doctrine of the Faith
The Dicastery for the Doctrine of the Faith (DDF) is a department of the Roman Curia in charge of the religious discipline of the Catholic Church. The Dicastery is the oldest among the departments of the Roman Curia. Its seat is the Palace of t ...
, Apostolic Letters Apostolic letter (Latin: ''littera apostolica'') may refer to:
* New Testament epistles, which are:
** the Pauline epistles
** the Epistle to the Hebrews
** the catholic epistles
* an ecclesiastical letter by the pope or in his name
See also
* ...
, or other sources printed by Church authorities).
Lutheranism
In Lutheranism
Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched ...
, sins are of two classes:
The Smalcald Articles of Lutheranism teach that apostasy from the Christian faith can occur through loss of faith or through falling into a lifestyle characterized by mortal sin:
The Lutheran divine Martin Chemnitz
Martin Chemnitz (9 November 1522 – 8 April 1586) was an eminent second-generation German Confederation, German, Lutheranism, Evangelical Lutheran, Christian theology, Christian theologian, and a Protestant Reformers, Protestant reformer, c ...
, who contributed to the development of Lutheran systematic theology, delineated what are considered mortal sins:
With respect to the examination of conscience
Examination of conscience is a review of one's past thoughts, words, actions, and omissions for the purpose of ascertaining their conformity with, or deviation from, the moral law. Among Christians, this is generally a private review; secular in ...
, Chemnitz implored Lutheran clergy to remind the faithful of what sins are mortal (especially the seven deadly sins
The seven deadly sins (also known as the capital vices or cardinal sins) function as a grouping of major vices within the teachings of Christianity. In the standard list, the seven deadly sins according to the Catholic Church are pride, greed ...
) and those that are venial.
Eastern Orthodoxy
According to Father Allyne Smith, "While the Roman Catholic tradition has identified particular acts as 'mortal' sins, in the Eastern Orthodox
Eastern Orthodoxy, otherwise known as Eastern Orthodox Christianity or Byzantine Christianity, is one of the three main Branches of Christianity, branches of Chalcedonian Christianity, alongside Catholic Church, Catholicism and Protestantism ...
tradition we see that only a sin for which we don't repent is 'mortal.'"
According to the Mission of The Orthodox Church in America, in answer to a parishioner's query:
Though not part of the dogma of the Orthodox Church, the mortal–venial distinction is assumed by some Orthodox authors and saints as a theologoumenon. For example, Saint Ignatius Brianchaninov (1807–1867), who wrote primarily for monks, says in his book ''A Word on Death'', in a chapter entitled "Mortal sin":
Similarly, the ''Exomologetarion'' of Nicodemus the Hagiorite (1749–1809) distinguishes seven classes of sin:
# Pardonable
# Near the pardonable
# Non-mortal
# Near the non-mortal
# Between the mortal and the non-mortal
# Near the mortal
# Mortal
Nicodemus gives the following example for the seven classes of sin. "The initial movement of anger is pardonable; near to the pardonable is for someone to say harsh words and get hot-tempered. A non-mortal sin is to swear; near the non-mortal is for someone to strike with the hand. Between the non-mortal and the mortal is to strike with a small stick; near the mortal is to strike with a large stick, or with a knife, but not in the area of the head. A mortal sin is to murder. A similar pattern applies to the other sins. Wherefore, those sins nearer to the pardonable end are penanced lighter, while those nearer to the mortal end are more severely penanced."
He also stipulates seven conditions of sin:
# Who is the doer of the sin
# What sin was committed
# Why was it committed
# In what manner was it committed
# At what time/age was it committed
# Where was it committed
# How many times was it committed
See also
*
* Ancestral sin
Ancestral sin, generational sin, or ancestral fault (; ; ), is the doctrine that teaches that individuals inherit the judgement for the sin of their ancestors. It exists primarily as a concept in Mediterranean religions (e.g. in Christian hamarti ...
* Blasphemy against the Holy Ghost
* Blood atonement
* Original sin
Original sin () in Christian theology refers to the condition of sinfulness that all humans share, which is inherited from Adam and Eve due to the Fall of man, Fall, involving the loss of original righteousness and the distortion of the Image ...
* Seven deadly sins
The seven deadly sins (also known as the capital vices or cardinal sins) function as a grouping of major vices within the teachings of Christianity. In the standard list, the seven deadly sins according to the Catholic Church are pride, greed ...
* Sins that cry to heaven
* Jewish views on sin
* Islamic views on sin
Sin is an important concept in Islamic ethics that Muslims view as being anything that goes against the commands of God or breaching the laws and norms laid down by religion. Islam teaches that sin is an act and not a state of being.
The Quran ...
* Catholic hamartiology
Notes
References
Further reading
*
*
*
*
*
The Council of Trent - Session XIV - The fourth under the Supreme Pontiff, Julius III, celebrated on November 25, 1551 - The Most Holy Sacraments Of Penance And Extreme Unction
{{DEFAULTSORT:Mortal Sin
Catholic theology and doctrine
Christian hamartiology
Christian terminology
Lutheran theology