ACC ~ 2 Corinthians 11 v4

ADDING TO THE GOSPEL. CHRYSOSTOM: What probably happened was that false teachers appeared from elsewhere and added to what the apostles had already taught. Their claim would have been that the apostles had not said all that there was to say, which Paul is at pains to deny. HOMILIES ON THE EPISTLES OF PAUL TO THE CORINTHIANS 23.2.

2 Cor