Acts 15:4

4 When they arrived in Jerusalem, Barnabas and Paul were welcomed by the whole church, including the apostles and elders. They reported everything God had done through them.

Acts 15:4 Meaning and Commentary

Acts 15:4

And when they were come to Jerusalem
Paul and Barnabas, and the rest that came from Antioch with them:

they were received of the church;
that is, that was at Jerusalem, in a very kind and respectful manner; they were received into their houses, and accommodated with everything convenient for them:

and of the apostles;
particularly James, and Cephas, and John, who gave to Paul and Barnabas the right hand of fellowship, in token of their approbation of them, affection for them, and agreement with them:

and elders:
the other ministers of the Gospel who preached in that place:

and they declared all things that God had done with them:
just as they did to the church at Antioch, when they returned from their travels, (See Gill on Acts 14:27), the Arabic version here adds, as there, "and that God had opened to the Gentiles the door of faith."

Acts 15:4 In-Context

2 Paul and Barnabas disagreed with them, arguing vehemently. Finally, the church decided to send Paul and Barnabas to Jerusalem, accompanied by some local believers, to talk to the apostles and elders about this question.
3 The church sent the delegates to Jerusalem, and they stopped along the way in Phoenicia and Samaria to visit the believers. They told them—much to everyone’s joy—that the Gentiles, too, were being converted.
4 When they arrived in Jerusalem, Barnabas and Paul were welcomed by the whole church, including the apostles and elders. They reported everything God had done through them.
5 But then some of the believers who belonged to the sect of the Pharisees stood up and insisted, “The Gentile converts must be circumcised and required to follow the law of Moses.”
6 So the apostles and elders met together to resolve this issue.