The Orthodox and Eastern Catholic Churches honor him as a saint and count him among the Three Holy Hierarchs, together with Saints Basil the Great and Gregory Nazianzus. He is recognized by the Eastern Orthodox Church and Roman Catholic Church as a saint and 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 recognizes John Chrysostom as a saint (feast days: 16 Thout and 17 Hathor).
John is known in Christianity chiefly as a preacher, theologian and liturgist, particularly in the Eastern Orthodox Church. Among his sermons, eight directed against Judaizing Christians remain controversial for their impact on the development of Christian antisemitism.. He was also active in destruction of pagan symbols and places of worship, including the temple of Artemis at Ephesus.