A prominent member of the Jerusalem church. He was a prophet (Acts 15:32). Like Paul, he was a Roman citizen (Acts 16:37), which gave him legal status and protection in the Empire.
He was chosen by the Jerusalem Council to deliver the letter to the Gentile believers in Antioch. He was trusted to handle delicate theological negotiations between Jewish and Gentile factions.
He was formed by Church Unity. His first major task was to bring peace and encouragement to a divided church. He was a man of "Paraklesis" (encouragement), much like Barnabas.