A Brief Life of Saint John Chrysostom, Patriarch of Constantinople
It was said of Saint John of Constantinople, justly known as Chrysostom (meaning "golden mouth") for the purity and brilliance of his teaching and the splendor of his eloquence, that from the day he received the salutary sacrament of baptism, he neither swore nor required anybody else to swear, nor lied, nor spoke, nor listened to witty words.