Acts 16:4
And as they went through the towns, they passed on to them to observe the rules that had been decided by the apostles and elders [who were] in Jerusalem.
Acts 15:28-29
For it seemed best to the Holy Spirit and to us to place on you no greater burden except these necessary things:
Acts 15:2
And [after] there was no little strife and debate by Paul and Barnabas against them, they appointed Paul and Barnabas and some others from among them to go up to the apostles and elders in Jerusalem concerning this issue.
Acts 11:30
which they also did, sending [the aid] to the elders by the hand of Barnabas and Saul.
Acts 15:6
Both the apostles and the elders assembled to deliberate concerning this matter.