St. John Chrystostom 347-407 A.D St. John, called "Chrysostom" or "Golden Mouth", was born in Antioch, the city where the followers of Christ were first called Christians, in 347. John’s amazing oratorical ability earned him the title.   His sermons were clear, to the point on often continued for hours.  John's father died when he was young, and he was raised by a very pius mother. Well educated; studied rhetoric under Libanius, one of the most famous orators of his day. Monk. Preacher and priest for a dozen years in Syria. While there he developed a stomach ailment that troubled him the rest of his life. After completing his education, he entered the practice of law and then, in his early twenties, became a catechumen. After three years of preparation he was baptized-an event that was the turning point of his life, leading to a complete renunciation of his former ways, even to the point of almost continual silence, so as to avoid the temptation to indulge in gossip or slander.

Becoming a monk, Chrysostom preached every Sunday, and sometimes two or three times during the week. When he was not preaching to great multitudes, he composed commentaries on Scripture. But in 397 he was chosen Patriarch of Constantinople, became involved in some of the important theological controversies of his day, and suffered unfair exile. He bore all this patiently and meekly. On September 14, 407, St. John Chrysostom (then in exile) received Holy Communion while wearing his white baptismal garment and spoke these last words: "Glory be to God for all things. Amen." Almost immediately after his death he was hailed as a saint by the Christians of his time.  He edited and handed down the text of the Divine Liturgy, which is still known by his name, and celebrated weekly in the Ukrainian Catholic Church.

He was known as Archbishop and Patriarch of Constantinople for revising the Greek Liturgy, as the Greek Father of the Church and was proclaimed Doctor of the Church in 451.
See also http://www.roca.org/OA/2/2e.htm  and http://www.catholic-forum.com/saints/saintj25.htm

St. Basil the Great Nobility by birth in Caesarea in 329 AD, his parents and four of his nine siblings were canonized, including Saint Gregory of Nyssa; Grandson of Saint Macrina the Elder. Studied in Constantinople and Athens with his friend Saint Gregory Nazianus. Ran a school of oratory and law in Caesarea. He was so successful, so sought after as a speaker, he was tempted by pride. Fearful that it would overtake his piety, he sold all that he had, gave away the money, and became a monk. At the age of 23 he formed a life-long holy friendship in Athens with St. Gregory Nazianzen who, together with St. Maerina, zealously encouraged and guided him to renounce the world and live the angelic life of a monk. The saint had already come to love holy poverty and feel contempt for human praise, following the example of Christ, and so he gave away his estate to the poor and traveled extensively, receiving instruction from holy monks and hermits. Founded monasteries and drew up rules for monks living in the desert. Bishop and Archbishop of Caesarea. Fought Arianism. Greek Doctor of the Church. Father of the Church.  The Liturgy according to St. Basil who originated it, is still practised in the Ukrainian Catholic Church.

See also http://www.roca.org/OA/3/3f.htm http://www.catholic-forum.com/saints/saintb05.htm