1 Samuel 7:8
And the sons of Israel said to Samuel, Do not cease to cry to LORD our God for us, that he will save us out of the hand of the Philistines.
Isaiah 37:4
It may be LORD thy God will hear the words of Rabshakeh, whom the king of Assyria his master has sent to defy the living God, and will rebuke the words which LORD thy God has heard. Therefore lift up thy prayer for the remnant that
1 Samuel 12:19-24
And all the people said to Samuel, Pray for thy servants to LORD thy God that we not die, for we have added to all our sins [this] evil, to ask a king for us.
Isaiah 62:1
For Zion's sake I will not hold my peace, and for Jerusalem's sake I will not rest, until her righteousness goes forth as brightness, and her salvation as a lamp that burns.
Isaiah 62:6-7
I have set watchmen upon thy walls, O Jerusalem. They shall never keep silent day nor night. Ye who are LORD's reminders, take ye no rest,
James 5:16
Confess ye the trespasses to each other, and pray for each other so that ye may be healed. A working supplication of a righteous man is very powerful.