St. John Chrysostom, Doctor of the Church, was born at Antioch, c. 347 and died at Commana in Pontus, 14 September, 407. St. John's surname "Chrysostom" means "golden mouthed" and was given on account of his eloquence. The surname occurs for the first time in the "Constitution" of Pope Vigilius in the year 553. He is generally considered the most prominent doctor of the Greek Church and the greatest preacher ever heard in a Christian pulpit. His natural gifts, as well as exterior circumstances, helped him to become what he was. The success of Chrysostom's preaching is chiefly due to his great natural facility of speech, which was extraordinary even to Greeks, to the abundance of his thoughts as well as the popular way of presenting and illustrating them, and, last but not least, the whole-hearted earnestness and conviction with which he delivered the message which he felt had been given to him. Speculative explanation did not attract his mind, nor would they have suited the tastes of his hearers. He ordinarily preferred moral subjects, and very seldom in his sermons followed a regular plan, nor did he care to avoid digressions when any opportunity suggested them.
John Chrysostom (c. 347�407, Greek: Ἰωάννη� � Χρυσόστομος), Archbishop of Constantinople, was an important Early Church Father. He is known for his eloquence in preaching and public speaking, his denunciation of abuse of authority by both ecclesiastical and political leaders, the Divine Liturgy of St. John Chrysostom, and his ascetic sensibilities. After his death in 407 (or, according to some sources, during his life) he was given the Greek epithet chrysostomos, meaning "golden mouthed", in English and Anglicized to Chrysostom.
The Orthodox and Eastern Catholic Churches honor him as a saint and count him among the Three Holy Hierarchs, together with Basil the Great and Gregory Nazianzus. He is recognized by the Eastern Orthodox Church and the Catholic Church as a saint and as a Doctor of the Church. Churches of the Western tradition, including the Roman Catholic Church, some Anglican provinces, and parts of the Lutheran Church, commemorate him on 13 September. Some Lutheran and many Anglican provinces commemorate him on the traditional Eastern feast day of 27 January. The Coptic Orthodox Church of Alexandria also recognizes John Chrysostom as a saint (with feast days on 16 Thout and 17 Hathor).
John is known in Christianity chiefly as a preacher, theologian and liturgist. Among his homilies, eight directed against Judaizing Christians remain controversial for their impact on the development of Christian antisemitism.