This quote is from Saint Polycarp’s letter to the Philippians 135 A.D. against gnostic heresies:
“Whoever perverts the sayings of the Lord for his own desires is the first born of Satan. let us, therefore, leave the foolishness and false teachings of the crowd and turn back to the word delivered to us from the beginning.”-St. Polycarp (66-155 A.D.) Disciple of John the Apostle.
...
https://www.youtube.com/watch?v=tsZukXzciSM
This is the source material credits:
https://www.amazon.com/Out-Devils-Cauldron-John-Ramirez/dp/0985604301
...
https://www.youtube.com/watch?v=N6XzuwnJsOk