SAINT JOHN CHRYSOSTOM - Archbishop of Constantinople ( 407). St. John Chrysostom (the Golden-mouth), commemorated January 27 and 30 and November 13, was one of the greatest preachers of his time (late 4th Century) and was known for his zeal for Orthodoxy and his passionate defense of the poor, boldly exposing the vices of his age, for which reason he was eventually deposed and exiled. The bulk of his works are sermons on Holy Scripture, especially the Epistles of St. Paul, as well as other ascetical and pastoral works, including his On the Priesthood. To St. John is attributed the usual Divine Liturgy, although, as in the case of that of St. Basil the Great, probably only certain prayers are properly his.