Acts 11:2
and, when Peter returned to Jerusalem, the champions of circumcision found fault with him.
Acts 10:45
And all the Jewish believers who had come with Peter were astonished that on the Gentiles also the gift of the Holy Spirit was poured out.
Acts 10:9
The next day, while they were still on their journey and were getting near the town, about noon Peter went up on the house-top to pray.
Acts 15:1
But certain persons who had come down from Judaea tried to convince the brethren, saying, "Unless you are circumcised in accordance with the Mosaic custom, you cannot be saved."
Acts 15:5
But certain men who had belonged to the sect of the Pharisees but were now believers, stood up in the assembly, and said, "Yes, Gentile believers ought to be circumcised and be ordered to keep the Law of Moses."
Acts 21:20-23
And they, when they had heard his statement, gave the glory to God. Then they said, "You see, brother, how many tens of thousands of Jews there are among those who have accepted the faith, and they are all zealous upholders of the Law.
Galatians 2:12-14
For until certain persons came from James he had been accustomed to eat with Gentiles; but as soon as these persons came, he withdrew and separated himself for fear of the Circumcision party.