Theodulus the Presbyter

Theodulus, a presbyter in Coele-Syria, is said to have written many works, but the only one that has come into my hands is the one he composed On the Harmony of Divine Scripture, that is, of the Scriptures of the Old and New Testaments. He wrote it against the ancient heretics who, because of differences in the commands about ritual, say that the God of the Old Testament is different from the God of the New. In this work he shows that it was by the arrangement of one and the same God, the author of both Scriptures, that one law was given through Moses to those of old, in a ritual of sacrifices and in judicial laws, and another to us through the presence of Christ, in the holy mysteries and future promises. They should not be considered different, but as dictated by one spirit and one author, since the very things that would kill if kept only according to the letter would give life to the mind if kept according to the spirit. This writer died three years ago, in the reign of Zeno. [a]