1 Kings 20:13-14 Meanwhile a prophet came to Ahab king of Israel and announced, “This is what the Lord says: ‘Do you see this vast army? I will give it into your hand today, and then you will know that I am the Lord.’” “But who will do this?” asked Ahab. The prophet replied, “This is what the Lord says: ‘The junior officers under the provincial commanders will do it.’” “And who will start the battle?” he asked. The prophet answered, “You will.” 
How many times do I ask God, “who will do this?” …as if God weren’t powerful enough to do anything he pleases. Lord, give me strong faith.