Galatians 2:2

And I went up by revelation
He was not sent for by the apostles at Jerusalem, nor did he go of himself, nor only by the vote of the church at Antioch, but by a divine revelation; not a revelation made to the church, or by the prophets there, but by God himself to him; he had a secret impulse from the Spirit of God, and a private intimation given him, that it was the will of God he should go up at this time; which is no ways inconsistent with his being sent by the church, but served as a confirmation to him, that what they determined was right, and according to the mind of God:

and communicated unto them that Gospel, which I preach among the
Gentiles;
that self-same Gospel, which he had preached, and still continued to preach to the Gentiles; relating to free and full remission of sin by the blood of Christ, justification by his righteousness without the works of the law, and freedom from all the rituals and bondage of the Mosaic dispensation: for as the Gospel he preached was all of a piece, uniform and consistent, so he did not preach one sort of doctrine to the Gentiles, and another to the Jews; but the very self-same truths which were the subject of his ministry in the Gentile world, which were a crucified Christ, and salvation alone by him, these he communicated, laid before, and exposed unto the consideration of the elders and apostles at Jerusalem; not with a view either to give or receive instructions, but to compare their sentiments and principles together; that so it might appear that there, was an entire harmony and agreement between them; and this he did not publicly, to the whole church, at least at first, and especially the article of Christian liberty, which respects the freedom of the believing Jews, from the yoke of the law; for as yet they were not able to bear this doctrine; they could pretty readily agree that the Gentiles were not obliged to it, but could not think themselves free from it; wherefore the apostle, in great prudence, did not avouch this in the public audience:

but privately to them which were of reputation;
or "who seemed to be", i.e. somewhat, very considerable persons; not in their own opinion, or appearance only, but in reality, they seemed to be, and were pillars in the house of God; particularly he means James, Cephas, and John, then in great esteem with the saints, and deservedly honoured and respected by them, they being faithful labourers in the word and doctrine; so the Jewish doctors ^F1 call men of great esteem, (Mybwvx) , who "seem to be", or "are accounted of", a word to which the phrase here used answers: these were spiritual men, capable of judging of all spiritual things; men of full age, whose senses were exercised to discern between truth and error; and were very proper persons for the apostle to lay the scheme of his ministry before, and the various truths he insisted on in it: these he met "privately", or "separately", and "singly", as it may be rendered; he either conversed with the apostles alone, and all together, in some private house; or separately, one by one, in their own houses, and there freely and familiarly discoursed with them about the several doctrines of the Gospel; and particularly this, of freedom from the law: his end in it was, as he says,

lest by any means I should run, or had run in vain:
which is said, not with regard to himself, as if he had entertained any doubt of the doctrines he had preached, and needed any confirmation in them from them; for he was fully assured of the truth of them, and assured others of the same; or that he questioned the agreement of the apostles with him; or that his faith at all depended on their authority; but with regard to others, and his usefulness among them. The false teachers had insinuated that his doctrine was different from that of the apostles in Jerusalem, and so endeavoured to pervert the Gospel he preached, and overthrow the faith of those that heard him; and could this have been made to appear, it would in all likelihood have rendered, in a great measure, his past labours in vain, and have prevented his future usefulness: some read these words as an interrogation, "do I in any manner run, or have I run in vain?" no; from the account he laid before the church, the elders, and apostles, both in private and in public, ( Acts 15:4 Acts 15:12 ) it clearly appeared what success attended his ministry, how many seals he had of it, what numbers of souls were converted under it, and how many churches were planted by his means; for by "running" here is not meant the Christian course he ran, in common with other believers, which lies in the exercise of grace, and the discharge of duty; but the course of his ministry, which he performed with great activity, application, diligence, and constancy, until he had finished it.