Acts of the Apostles

[...] When they were at Salamis, they proclaimed the word of God in the Jewish synagogues. They had also John as their attendant. [...]

Acts of the Apostles: chapter 13, verse 5

Chapter 15, verse 5

⁵ But some of the sect of the Pharisees who believed rose up, saying, “It is necessary to circumcise them, and to command them to keep the law of Moses.”