Theodoret of Cyrus: Oral Tradition a Gnostic Claim

Give a wide berth to those hollow profanities and contradictions in what is falsely called knowledge; by professing it some have strayed from the faith (vv.20-21). Those who followed in the steps of Simon called themselves Gnostics; what the divine Scripture is silent on (they claim) God revealed to them, but they are full of impiety and licentiousness. He was right to call this knowledge what is falsely called knowledge: the darkness of ignorance is what they have, not the light of the knowledge of God.

- Theodoret of Cyrus (around A.D. 393 to around A.D. 457), Commentary on 1 Timothy, Chapter 6, in Theodoret of Cyrus, Commentary on the Letters of St. Paul, Volume 2, p. 230 (2001), Robert C. Hill translator.