1 Samuel 7:8
The children of Israel said to Samuel, "Don't cease to cry to Yahweh our God for us, that he will save us out of the hand of the Philistines."
Isaiah 37:4
It may be Yahweh your 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 Yahweh your God has heard. Therefore lift up your prayer for the remnant that is left.'"
1 Samuel 12:19-24
All the people said to Samuel, "Pray for your servants to Yahweh your God, that we not die; for we have added to all our sins [this] evil, to ask us a king."
Isaiah 62:1
For Zion's sake will I not hold my peace, and for Jerusalem's sake I will not rest, until her righteousness go forth as brightness, and her salvation as a lamp that burns.
Isaiah 62:6-7
I have set watchmen on your walls, Jerusalem; they shall never hold their peace day nor night: you who call on Yahweh, take no rest,
James 5:16
Confess your offenses to one another, and pray for one another, that you may be healed. The insistent prayer of a righteous person is powerfully effective.