Paul and Barnabas reported what God had enabled them to do.

Acts 15:3-4

3 After Paul, Barnabas, and the others were given things for their trip by the congregation at Antioch {After the congregation at Antioch gave Paul, Barnabas, and the others things for their trip}, they traveled through Phoenicia and Samaria provinces. When they stopped at different places in those provinces, they reported to the believers that many non-Jews in Antioch had become believers. As a result, all the believers in those places rejoiced greatly. 4 And when Paul, Barnabas, and the others arrived in Jerusalem, they were welcomed by the apostles, the other elders, and the other members of the congregation there {the apostles, the other elders, and the other members of the congregation there welcomed them}. Then Paul and Barnabas reported the things that God had enabled them to do among non-Jewish people.