John Piper:
God is not looking for people to work for him, so much as he is looking for people who will let him work for them. The gospel is not a Help Wanted ad. Neither is the call to Christian service. On the contrary, the gospel commands us to give up and hang out a Help Wanted sign (this is the basic meaning of prayer). Then the gospel promises that God will work for us if we do. He will not surrender the glory of being the Giver.
In Desiring God, page 146.
This must be why King David was a “man after God’s own heart.” The Psalms seem filled with a good deal of him crying out to God saying, “hey, how ’bout a little help here?”