1 Samuel 1:12
And it was when she multiplied to pray before Jehovah, and Eli watched her mouth.
Luke 11:8-10
I say to you, If also having risen he will not give him because of being his friend, yet for his effrontery, having risen, he will give him as many as he needs.
Luke 18:1
And he spake to them a parable, that they must always pray, and not lose courage;
Ephesians 6:18
By all prayer and supplication praying in all time in Spirit, and for this same watching vigilantly in all perseverance and supplication for the holy:
Colossians 4:2
In prayer persevere, watching in it in gratitude
1 Thessalonians 5:17
Pray continually.
James 5:16
Acknowledge your faults to one another, and pray for one another, that ye might be healed. The prayer of the just, being energetic, is very powerful.