Tertullian

But, inasmuch as our very perverse cavillers obtrude the rebuke in question for the set purpose of bringing the earlier doctrine into suspicion, I will put in a defence, as it were, for Peter, to the effect that even Paul said that he was "made all things to all men-to the Jews a Jew," to those who were not Jews as one who was not a Jew-"that he might gain all." Therefore it was according to times and persons and causes that they used to censure certain practices, which they would not hesitate themselves to pursue, in like conformity to times and persons and causes.