And I went up by revelation, and communicated unto them that gospel which I preach among the Gentiles, but privately to them who were of reputation, lest by any means I should run, or had run, in vain.
All Commentaries on Galatians 2:2 Go To Galatians 2
Augustine of Hippo
AD 430
“So that I should not run or have run in vain” we should understand to be addressed as if in a question, not to those with whom he compared his gospel in private but to those to whom he was writing, so that it might appear that he was not running and had not run in vain from the fact that by the testimony of the others he was certified not to dissent from the truth of the gospel.