14 It is no wonder then that many of the Fathers of the Church stress the authority of St. Ephrem. Nyssenus says of his writings, "Studying the Old and New Scriptures most thoroughly, he interpreted them accurately, word for word; and what was hidden and concealed, from the very creation of the world to the last book of grace, he illumined with commentaries, using the light of the Spirit." And Chrysostom: "The great Ephrem [is] scourge of the slothful, consoler of the afflicted, educator, instructor and exhorter of youth, mirror of monks, leader of penitents, goad and sting of heretics, reservoir of virtues, and the home and lodging of the Holy Spirit." Certainly nothing greater can be said in praise of a man who, however, seemed so small in his own eyes that he claimed to be the least of all and a most vile sinner."
Source: Principi Apostolorum Petro (Vatican.va)