In Luke, Jesus tell the Parable of the Friend at Night (The Son's Request), Luke 11:5-8:
Then he said to them, "Suppose one of you has a friend, and he goes to him at midnight and says, 'Friend, lend me three loaves of bread, because a friend of mine on a journey has come to me, and I have nothing to set before him.' "Then the one inside answers, 'Don't bother me. The door is already locked, and my children are with me in bed. I can't get up and give you anything.' I tell you, though he will not get up and give him the bread because he is his friend, yet because of the man's boldness he will get up and give him as much as he needs.
The parable appears among texts related to prayer: the Lord's prayer; the admonition to ask, seek, and knock; and the aphorism about good gifts from a father.