Luke 11:8
"I tell you that, though he will not rise and give to him because he is his friend, yet because of his importunate persistence he will rise and give him whatever he needs.
Matthew 15:22-28
Behold, there came to him a Canaanite woman of those parts. She wailed loudly, saying. "Pity me, Lord, thou Son of David! My daughter is possessed of an evil spirit."
Luke 18:1-8
He also taught them by a parable how they ought always to pray and never to lose heart.
Romans 15:30
Brothers, I beseech you, by Jesus Christ our Lord, and by the love which the Spirit gives, to help me in my struggle by your prayers to God on my behalf,
2 Corinthians 12:8
Concerning this, three times over I supplicated the Lord that it might leave me;
Colossians 2:1
For I would have you know how great a contest I am waging for you and the brethren in Laodicea, and for all who have never seen my face.
Colossians 4:12
Epaphras, one of yourselves, salutes you, a slave of Christ who is always agonizing for you in his prayers, that you may stand firm, mature, and fully assured in all the will of God.