Galatians 1:18,19 - Joseph Benson’s Commentary on the Old and New Testaments

Then, after three years Wherein I had given full proof of my apostleship; I went up to Jerusalem to see Peter And converse with him; and abode with him fifteen days During which they doubtless discoursed at large together on the mutual success of their ministry. “This being Paul's first visit to Jerusalem since his conversion, the brethren there shunned him, suspecting that he feigned himself a disciple with a view to betray them. But Barnabas, who probably had learned the particulars of his conversion from Ananias, took and brought him to the apostles, (Peter and James,) and declared to them how he had seen the Lord in the way, Acts 9:27. It does not appear that on this occasion any thing was said, either by Barnabas or by Saul, concerning Christ's making Saul an apostle at the time he converted him, or concerning his sending him to preach to the idolatrous Gentiles, as is related by the apostle himself, Acts 26:16-18. These things were not mentioned in Jerusalem till Paul went up to the council, fourteen years after his conversion, Galatians 2:2; Galatians 2:7-9.” But other of the apostles saw I none, save James the Lord's brother Or kinsman, as the word here signifies; for he was the son of Alpheus, by Mary the sister of our Lord's mother. That Paul made so short a stay at Jerusalem, at this time, was probably owing to Christ's appearing to him in a trance, while in the temple, and commanding him to depart quickly from Jerusalem, Acts 22:18. The brethren also, it seems, advised him to depart, because the Hellenist Jews were determined to kill him.