John II (bishop of Jerusalem)

John II, a prominent figure in early Christianity, served as the bishop of Jerusalem from AD 387 until AD 417. He ascended to this esteemed position following the death of Cyril, his predecessor, in either the year three hundred eighty-six or three hundred eighty-seven.

His contributions to the theological landscape are significant, as he is increasingly recognized by modern scholars as the author of the five Mystagogical Catecheses, works traditionally attributed to Cyril. These catecheses played a crucial role in the spiritual education of the faithful during a formative period in the Church's history.

John II is venerated as a saint in both the Eastern Orthodox Church and the Roman Catholic Church. His feast day is celebrated on March thirtieth in the Eastern tradition, while the Roman Catholic Church commemorates him on January tenth, as noted in the Martyrologium Romanum.