Acts 2:42-43, NIV: They devoted themselves to the apostles’ teaching and to the fellowship, to the breaking of bread and to prayer.
1 Kings 8:33-34, NIV: When your people Israel have been defeated by an enemy because they have sinned against you, and when they turn back to you and confess your name, praying and making supplication to you in this temple, then hear from heaven and forgive the sin of your people Israel and bring them back to the land you gave to their fathers.
Daniel 11:32-33, NKJ: Those who do wickedly against the covenant he shall corrupt with flattery; but the people who know their God shall be strong, and carry out great exploits.
Revelations 12:11-12, NIV: They overcame him by the blood of the Lamb and by the word of their testimony; they did not love their lives so much as to shrink from death. Therefore rejoice, you heavens and you who dwell in them! But woe to the earth and the sea, because the devil has gone down to you! He is filled with fury, because he knows that his time is short.”
James 5:16b, NIV: The prayer of a righteous man is powerful and effective.