en_tn/act/13/02.md

General Information:

The words "they" refers to the other three leaders (verse 1), not including Barnabas and Saul, and it could include other believers.

Set apart for me Barnabas and Saul

"Appoint Barnabas and Saul to serve me"

I have called them

The verb here means that God chose them to do this work.