1 Corinthians 9:3

Mine answer to them that do examine me is this The Judaizers of whom we hear in the Epistle to the Galatians and in Acts 15, are now heard of here also, and this Epistle seems to have stirred them up to a still stronger antagonism, for St Paul is obliged to travel over the same ground in his second Epistle, and with much greater fulness. St Paul, therefore, though he -transferred in a figure to himself and Apollos" what he had said with reference to the Corinthian teachers, had nevertheless in view also some who disparaged his authority. It is worthy of note that the terms answerand examinein the original are the usual legal expressions (Olshausen), as though the Apostle conceived himself to be on his trial.