A.T. Robertson Commentary Acts 15:4

"And when they were come to Jerusalem, they were received of the church and the apostles and the elders, and they rehearsed all things that God had done with them." — Acts 15:4 (ASV)

Were received (παρεδεχθησαν). First aorist passive indicative of παραδεχομα, old verb, to receive, to welcome. Here it was a public reception for Paul and Barnabas provided by the whole church including the apostles and elders, at which an opportunity was given to hear the story of Paul and Barnabas about God's dealings with them among the Gentiles. This first public meeting is referred to by Paul in Ga 2:2 "I set before them (αυτοις) the gospel, etc."