And was unknown by face unto the churches of Judea which were in Christ:
All Commentaries on Galatians 1:22 Go To Galatians 1
Jerome
AD 420
He discreetly returns to the main point, establishing that he had spent so short a time in Judea that he was unknown even by face to the believers. Hence he shows that he had no teachers—not Peter, not James, not John—but Christ, who had revealed his gospel to him.