In the 4th and 5th centuries, various Church Fathers wrote that the Gospel of Thomas was highly valued by Mani. In the 4th century, Cyril of Jerusalem mentioned a "Gospel of Thomas" twice in his Catechesis: "The Manichaeans also wrote a Gospel according to Thomas, which being tinctured with the fragrance of the evangelic title corrupts the souls of the simple sort."Cyril Catechesis 4.36 and "Let none read the Gospel according to Thomas: for it is the work not of one of the twelve Apostles, but of one of the three wicked disciples of Manes."Cyril Catechesis 6.31 The 5th-century Decretum Gelasianum includes "A Gospel attributed to Thomas which the Manichaean use" in its list of heretical books.
In the 4th and 5th centuries, various Church Fathers wrote that the Gospel of Thomas was highly valued by Mani. In the 4th century, Cyril of Jerusalem mentioned a "Gospel of Thomas" twice in his Catechesis: "The Manichaeans also wrote a Gospel according to Thomas, which being tinctured with the fragrance of the evangelic title corrupts the souls of the simple sort."Cyril Catechesis 4.36 and "Let non,e read the Gospel according to Thomas: for it is the work not of one of the twelve Apostles, but of one of the three wicked disciples of Manes."Cyril Catechesis 6.31 The 5th-century Decretum Gelasianum includes "A Gospel attributed to Thomas which the Manichaean use" in its list of heretical books.