"Suppose you went to a friend's house at midnight, wanting to borrow three loaves of bread. You would shout up to him, 'A friend of mine has just arrived for a visit, and I've nothing to give him to eat.' He would call down from his bedroom, 'Please don't ask me to get up. The door is locked for the night, and we are all in bed. I just can't help you this time.'
"But I'll tell you this—though he won't do it as a friend, if you keep knocking long enough, he will get up and give you everything you want—just because of your persistence. And so it is with prayer—keep on asking, and you will keep on getting; keep on looking, and you will keep on finding; knock, and the door will be opened. Everyone who asks receives; all who seek, find; and the door is opened to everyone who knocks.