" "Confess your sins in church, and do not go up to your prayer with an evil conscience. This is the way of life. . . . On the Lord’s Day gather together, break bread, and give thanks, after confessing your transgressions so that your sacrifice may be pure" (Didache 4:14, 14:1 [A.D. 70)."
It was a response to your false assertion that confession dates from the 1200s. The sources cited lived, worshiped and died before that period.