en_tn/act/12/25.md

completed their mission

This refers back to when they brought money from the believers at Antioch in Acts 11:29-30. AT: "delivered the money to the church leaders in Jerusalem" (See: rc://en/ta/man/translate/figs-explicit)

they returned from Jerusalem

They went back to Antioch from Jerusalem. AT: "Barnabas and Saul returned to Antioch" (See: rc://en/ta/man/translate/figs-explicit)