Who Was Barnabas? Acts 4:36–37 Explained
Barnabas enters Acts not as a preacher but as a landowner who sold a field and placed the money at the apostles' feet. The passage gives his birth name, his background and the nickname that summarizes his character.
Barnabas in Acts 9: The Man Who Vouched for Saul
Barnabas appears in Acts 9 as the disciple who took Saul to the apostles and gave evidence of his encounter with the Lord, turning a feared stranger into a received brother.