Saint John Chrysostom (c. 347–407, Greek: Ιωάννης ο 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 (or, according to some sources, during his life) he was given the Greek surname chrysostomos, meaning "golden mouthed", rendered in English as Chrysostom.
The Eastern Orthodox Church honors him as a saint (feast days: November 13 and January 27) and count him among the Three Holy Hierarchs (feast day, January 30), together with Saints Basil the Great and Gregory Nazianzus. Churches of the Western tradition, including some Anglican provinces and parts of the Lutheran Church, commemorate him on September 13. The Coptic Orthodox Church of Alexandria recognizes John Chrysostom as a saint (feast days: 16 Thout and 17 Hathor).
Chrysostom is known in Christianity chiefly as a preacher, theologian and liturgist, particularly in the Eastern Orthodox Church. Among his sermons, eight directed against the Jews remain controversial for their impact on the development of Christian antisemitism.