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14. But when I saw that they walked not uprightly. Some apply these words to the Gentiles, who, perplexed by Peter’s example, were beginning to give way; but it is more natural to understand them as referring to Peter and Barnabas, and their followers. The proper road to the truth of the gospel was, to unite the Gentiles with the Jews in such a manner that the true doctrine should not be injured. But to bind the consciences of godly men by an obligation to keep the law, and to bury in silence the doctrine of liberty, was to purchase unity at an exorbitant price.

The truth of the gospel is here used, by Paul, in the same sense as before, and is contrasted with those disguises by which Peter and others concealed its beauty. In such a case, the struggle which Paul had to maintain must unquestionably have been serious. They were perfectly agreed about doctrine; ⁴⁶⁴⁶     “From this portion of sacred history, we are not at liberty to conclude that either of those two apostles had fallen into error in faith; or that they differed from each other about doctrine. Unquestionably, so far as relates to doctrine, Peter was of the same opinion with Paul on this subject, that it was lawful for a Jew to live on terms of friendship with believing Gentiles. — The whole of this controversy related, not to the doctrine of Christian liberty, but to the exercise of it at different times and places; and on this point the rules of prudence were better understood by Paul than by Peter.” — Witsius. but since, laying doctrine out of view, Peter yielded too submissively to the Jews, he is accused of halting. There are some who apologize for Peter on another ground, because, being the apostle of the circumcision, he was bound to take a particular concern in the salvation of the Jews; while they at the same time admit that Paul did right in pleading the cause of the Gentiles. But it is foolish to defend what the Holy Spirit by the mouth of Paul has condemned. This was no affair of men, but involved the purity of the gospel, which was in danger of being contaminated by Jewish leaven.

Before them all. This example instructs us, that those who have sinned publicly must be publicly chastised, so far as concerns the Church. The intention is, that their sin may not, by remaining unpunished, form a dangerous example; and Paul elsewhere (1 Timothy 5:20) lays down this rule expressly, to be observed in the case of elders,

“Them that sin rebuke before all, that others also may fear;”

because the station which they hold renders their example more pernicious. It was particularly advantageous, that the good cause, in which all had an interest, should be openly defended in presence of the people, that Paul might have a better opportunity of shewing that he did not shrink from the broad light of day.

If thou, being a Jew. Paul’s address to Peter consists of two parts. In the first, he expostulates with him for his injustice toward the Gentiles, in compelling them to keep the law, from the obligations of which he wished himself to be exempted. For, not to mention that every man is bound to keep the law which he lays down for others, his conduct was greatly aggravated by compelling the Gentiles to observe Jewish ceremonies, while he, being a Jew, left himself at liberty. The law was given to Jews, not to Gentiles; so that he argues from the less to the greater.

Next, it is argued, that, in a harsh and violent manner, he compelled the Gentiles, by withdrawing from their communion, unless they chose to submit to the yoke of the law; and thus imposed on them an unjust condition. And, indeed, the whole force of the reproof lies in this word, which neither Chrysostom nor Jerome has remarked. The use of ceremonies was free for the purposes of edification, provided that believers were not deprived of their liberty, or laid under any restraint from which the gospel sets them free.