'Task' in the Bible

to assume the task of this service and apostleship from which Judas turned aside to go to his own place."

But carefully select from among you, brothers, seven men who are well-attested, full of the Spirit and of wisdom, whom we may put in charge of this necessary task.

But I do not consider my life worth anything to myself, so that I may finish my task and the ministry that I received from the Lord Jesus, to testify to the good news of God's grace.