Galatians 1:20

“Now the things which I write unto you, etc..] Concerning his education, his religion, his principles and practices before conversion; concerning his call by the grace of God, the revelation of Christ in him, and his preaching of him among the Heathen; concerning his travels to several places for this purpose, and especially concerning his not receiving the Gospel from men, not from any of the apostles; and how that upon his conversion he did not go up to Jerusalem to any of them, to be taught and sent forth by them; and that it was not till three years after that he wept thither to see Peter, with whom he stayed but fifteen days, and saw no other apostle, but James the Lord's brother. Now…”

“Solemn asseveration that his statement is true that his visit was but for fifteen days and that he saw no apostle save Peter and James. Probably it had been reported by Judaizers that he had received a long course of instruction from the apostles in Jerusalem from the first; hence his earnestness in asserting the contrary facts.”

“Behold, before God I lie not - This is an oath, or a solemn appeal to God; see the note at Romans 9:1. The design of this oath here is to prevent all suspicion of falsehood, It may seem to be remarkable that Paul should make this solemn appeal to God in this argument, and in the narrative of a plain fact, when his statement could hardly be called in question by anyone. But we may remark: (1) That the oath here refers not only to the fact that he was with Peter and James only fifteen days, but to the entire group of facts to which he had referred in this chapter. “The things which I wrote unto you.” It included, therefore, the narrative about his conversion, and the direct revelation which he…”

“1:20 I declare before God: Paul here takes an oath to emphasize the truthfulness of his account of his trip to Jerusalem.”

“behold: Rom 9:1; Co2 11:10, Co2 11:11, Co2 11:31 Galatians 1:21”