Few incidents exhibit more strongly than this the grievous consequences that may ensue from a seemingly trivial moral error. It looked a little thing that Peter should prefer to take his meals away from Gentile company. And yet, as Paul tells him, his withdrawal was a virtual rejection of the Gospel, and imperilled the most vital interests of Christianity. By this act the Jewish Apostle gave a handle to the adversaries of the Church which they have used for generations and for ages afterwards. The dispute which it occassioned could never be forgotten. In the second century it still drew down on Paul the bitter reproaches of the Judaizing faction. And in our own day the rationalistic critics have been able to turn it to marvellous account. It supplies the corner-stone of their "scientific reconstruction" of Biblical theology. The entire theory of Baur is evolved out of Peter's blunder. Let it be granted that Peter in yielding to the "certain from James" followed his genuine convictions and the tradition of Jewish Christianity, and we see at once how deep a gulf lay between Paul and the Primitive Church. All that Paul argues in the subsequent discussion only tends, in this case, to make the breach more visible. This false step of Peter is the thing that chiefly lends a colour to the theory in question, with all the far-reaching consequences touching the origin and import of Christianity, which it involves. So long "the evil that men do lives after them"! Paul's rebuke of his brother Apostle extends to the conclusion of the chapter. Some interpreters cut it short at the end of ver. 14; others at ver. 16; others again at ver. 18. But the address is consecutive and germane to the occasion throughout. Paul does not, to be sure, give a verbatim report, but the substance of what he said, and in a form suited to his readers. The narrative is an admirable prelude to the argument of chap. iii. It forms the transition from the historical to the polemical part of the Epistle, from the Apostle's personal to his doctrinal apology. The condensed form of the speech makes its interpretation difficult and much contested. We shall in the remainder of this Chapter trace the general course of Paul's reproof, proposing in the following Chapter to deal more fully with its doctrinal contents. I. In the first place, _Paul taxes the Jewish Apostle with insincerity and unfaithfulness toward the gospel_. "I saw," he says, "that they were not holding a straight course, according to the truth of the gospel."