'Mission' in the Bible

and the Lord sent you on a mission, and said, ‘Go and utterly destroy the sinners, the Amalekites, and fight against them until they are exterminated.’

Then Saul said to Samuel, “I did obey the voice of the Lord, and went on the mission on which the Lord sent me, and have brought back Agag the king of Amalek, and have utterly destroyed the Amalekites.

And Barnabas and Saul returned from Jerusalem when they had fulfilled their mission, taking along with them John, who was also called Mark.