But some men came down from Judea and were teaching the brothers, “Unless you are circumcised according to the custom of Moses, you cannot be saved.” ² And after Paul and Barnabas had no small dissension and debate with them, Paul and Barnabas and some of the others were appointed to go up to Jerusalem to the apostles and the elders about this question. ³ So, being sent on their way by the church, they passed through both Phoenicia and Samaria, describing in detail the conversion of the Gentiles, and brought great joy to all the brothers. ⁴ When they came to Jerusalem, they were welcomed by the church and the apostles and the elders, and they declared all that God had done with them. ⁵ But some believers who belonged to the party of the Pharisees rose up and said, “It is necessary to circumcise them and to order them to keep the law of Moses.” ⁶ The apostles and the elders were gathered together to consider this matter.

³⁶ And after some days Paul said to Barnabas, “Let us return and visit the brothers in every city where we proclaimed the word of the Lord, and see how they are.” ³⁷ Now Barnabas wanted to take with them John called Mark. ³⁸ But Paul thought best not to take with them one who had withdrawn from them in Pamphylia and had not gone with them to the work. ³⁹ And there arose a sharp disagreement, so that they separated from each other. Barnabas took Mark with him and sailed away to Cyprus, ⁴⁰ but Paul chose Silas and departed, having been commended by the brothers to the grace of the Lord. ⁴¹ And he went through Syria and Cilicia, strengthening the churches.