'Mission' in the Bible

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

David said to Ahimelech the priest, “The king has commissioned me with a matter and has told me, ‘Let no one know anything about the matter for which I am sending you and with which I have commissioned you. I have directed the young men to a certain place.’

He sent upon them His burning anger,His fury and indignation and distress,A band of angels of destruction [among them].