Luke 11:8
I tell you that, even though he will not get up and give him anything because he is a friend, yet because of his persistence he will rouse himself and give him what he wants.
Matthew 15:22-28
There, a Canaanite woman of that district came out and began calling to Jesus: "Take pity on me, Master, Son of David; my daughter is grievously possessed by a demon."
Luke 18:1-8
Jesus told his disciples a parable to show them that they should always pray and never despair.
Romans 15:30
I beg you, then, Brothers, by Jesus Christ, our Lord, and by the love inspired by the Spirit, to join me in earnest prayer to God on my behalf.
2 Corinthians 12:8
About this I three times entreated the Lord, praying that it might leave me.
Colossians 2:1
I want you to know in how great a struggle I am engaged for you and for Christ's People at Laodicea, and for all who have not yet seen me;
Colossians 4:12
Epaphras, who is one of yourselves, sends you his greeting. He is a servant of Christ Jesus, and is always most earnest in your behalf in his prayers, praying that you may stand firm, with a matured faith and with a sure conviction of all that is in accordance with God's will.