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

Eusebius Eusebius of Caesarea (; grc-gre, Εὐσέβιος ; 260/265 – 30 May 339), also known as Eusebius Pamphilus (from the grc-gre, Εὐσέβιος τοῦ Παμφίλου), was a Greek historian of Christianity, exegete, and Christian ...

, 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 ...

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 Apostles

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 sur ...

James James is a common English language surname and given name: *James (name), the typically masculine first name James * James (surname), various people with the last name James James or James City may also refer to: People * King James (disambiguat ...

, and

John John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second ...

. 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 ...

and

ordained Ordination is the process by which individuals are consecrated, that is, set apart and elevated from the laity class to the clergy, who are thus then authorized (usually by the denominational hierarchy composed of other clergy) to perform va ...

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