John I of Jerusalem was the seventh Bishop of Jerusalem. He was, according to Eusebius, a

Jewish Christian Jewish Christians ( he, יהודים נוצרים, yehudim notzrim) were the followers of a Jewish religious sect that emerged in Judea during the late Second Temple period (first century AD). The Nazarene Jews integrated the belief of Jesus a ...

born to Jewish parents who kept the Law of the Torah. According to universal tradition, John I replaced the first bishop of Jerusalem

Saint James the Just James the Just, or a variation of James, brother of the Lord ( la, Iacobus from he, יעקב, and grc-gre, Ἰάκωβος, , can also be Anglicized as "Jacob"), was "a brother of Jesus", according to the New Testament. He was an early lead ...

, the ''" brother of the Lord,"'' who was appointed bishop by the

Apostle An apostle (), in its literal sense, is an emissary, from Ancient Greek ἀπόστολος (''apóstolos''), literally "one who is sent off", from the verb ἀποστέλλειν (''apostéllein''), "to send off". The purpose of such sending ...

Peter Peter may refer to: People * List of people named Peter, a list of people and fictional characters with the given name * Peter (given name) ** Saint Peter (died 60s), apostle of Jesus, leader of the early Christian Church * Peter (surname), a s ...

, James, and John. John was well versed in the

Law of Moses The Law of Moses ( he, תֹּורַת מֹשֶׁה ), also called the Mosaic Law, primarily refers to the Torah or the first five books of the Hebrew Bible. The law revealed to Moses by God. Terminology The Law of Moses or Torah of Moses (Hebrew ...

and as a young man disputed with

Christians Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words ''Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χρι� ...

until he converted with the instruction of St. Justus bishop of Jerusalem. He was

baptized Baptism (from grc-x-koine, βάπτισμα, váptisma) is a form of ritual purification—a characteristic of many religions throughout time and geography. In Christianity, it is a Christian sacrament of initiation and adoption, almost inv ...

and ordained a deacon. His two-year episcopacy was one under which the church was persecuted. John I died April 11, after serving two years in office.The Departure of St. John, Bishop of Jerusalem
.

References

2nd-century bishops of Jerusalem Saints from the Holy Land 2nd-century Christian martyrs Year of birth unknown {{Saint-stub