'Completed' in the Bible

Barnabas and Saul came back from Jerusalem when they had completed their mission, bringing with them John, who was also called Mark.

From there they sailed back to Antioch, where they had been entrusted to the grace of God for the work which they had now completed.

When we had completed the voyage from Tyre, we landed [twenty miles to the south] at Ptolemais, and after greeting the believers, we stayed with them for one day.