Contended with him - A manifest proof this that the primitive Church at Jerusalem (and no Church can ever deserve this name but the Jerusalem Church) had no conception of St. Peter's supremacy, or of his being prince of the apostles. He is now called to account for his conduct, which they judged to be reprehensible; and which they would not have attempted to do had they believed him to be Christ's vicar upon earth, and the infallible Head of the Church. But this absurd dream is every where refuted in the New Testament.

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Acts 10:9,45 On the morrow, as they went on their journey, and drew near to the city, Peter went up on the housetop to pray about the sixth hour...

Acts 15:1,5 And certain men which came down from Judaea taught the brothers, and said, Except you be circumcised after the manner of Moses...

Acts 21:20-23 And when they heard it, they glorified the Lord, and said to him, You see, brother, how many thousands of Jews there are which believe...

Galatians 2:12-14 For before that certain came from James, he did eat with the Gentiles: but when they were come, he withdrew and separated himself...

Peter's Apologia
'And the apostles and brethren that were in Judaea heard that the Gentiles had also received the word of God. 2. And when Peter was come up to Jerusalem, they that were of the circumcision contended with him, 3. Saying, Thou wentest in to men uncircumcised, and didst eat with them. 4. But Peter rehearsed the matter from the beginning, and expounded it by order unto them, saying, 5. I was in the city of Joppa praying: and in a trance I saw a vision, A certain vessel descend, as it had been a great …
Alexander Maclaren—Expositions of Holy Scripture: The Acts

What God Hath Cleansed
'There was a certain man in Caesarea called Cornelius, a centurion of the band called the Italian band, 2. A devout man, and one that feared God with all his house, which gave much alms to the people, and prayed to God alway. 3. He saw in a vision evidently about the ninth hour of the day an angel of God coming in to him, and saying unto him, Cornelius. 4. And when he looked on him, he was afraid, and said, What is it, Lord? And he said unto him, Thy prayers and thine alms are come up for a memorial …
Alexander Maclaren—Expositions of Holy Scripture: The Acts

The Breaking Out of Discord
'And certain men which came down from Judaea taught the brethren, and said, Except ye be circumcised after the manner of Moses, ye cannot be saved. 2. When therefore Paul and Barnabas had no small dissension and disputation with them, they determined that Paul and Barnabas, and certain other of them, should go up to Jerusalem unto the apostles and elders about this question. 3. And being brought on their way by the church, they passed through Phenice and Samaria, declaring the conversion of the Gentiles: …
Alexander Maclaren—Expositions of Holy Scripture: The Acts