What do you do when the devil knocks at your door?

When I was first saved, I heard a story about a young girl who knew the meaning of victory very well. During the Keswick Convention, a man asked the little girl how she overcame when the devil came to her. She answered, “In the past, if the devil came to knock at my front door, as soon as he knocked, I would say, ‘Don’t come in. Don’t come in.’ But the result was always a failure. Now when the devil knocks at my door, I say, ‘Lord, You open the door for me.’ If the Lord opens the door, and the devil sees the Lord, he will say, ‘Sorry, I came to the wrong door,’ and he will run away.”

(The Overcoming Life, ch. 6)