Luke 11:5–10 (ASV)
5And he said unto them, Which of you shall have a friend, and shall go unto him at midnight, and say to him, Friend, lend me three loaves; 6for a friend of mine is come to me from a journey, and I have nothing to set before him; 7and he from within shall answer and say, Trouble me not: the door is now shut, and my children are with me in bed; I cannot rise and give thee? 8I say unto you, Though he will not rise and give him because he is his friend, yet because of his importunity he will arise and give him as many as he needeth. 9And I say unto you, Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you. 10For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened.
Mrs. Yuen was persistent, praying three times a day in her inner courtyard for a son to be born to her and her husband. In time they joyfully welcomed a baby boy named “Tien shi,” which means “Heaven's Gift.”
George Müller had a particular prayer request he brought before God every day that was still unanswered. Yet, twenty-nine years after he first brought this request to God, Mr. Müller writes about his unwavering faith and belief that God will eventually answer his prayer.
George Müller held on to God's promise to answer his petitions and intercessions. Like Jesus' parable of the persistent neighbor in the middle of the night, Müller persisted in prayer for years, believing that the reason God had kept a particular burden on his heart for so long was proof that God would grant his petition.