2 Samuel 12:22
He said, "While the child was still alive, I fasted and wept, for I said, 'Who knows whether the LORD will be gracious to me, that the child may live?'
Isaiah 38:1-3
In those days Hezekiah became sick and was at the point of death. And Isaiah the prophet the son of Amoz came to him, and said to him, "Thus says the LORD: Set your house in order, for you shall die, you shall not recover."
Isaiah 38:5
"Go and say to Hezekiah, Thus says the LORD, the God of David your father: I have heard your prayer; I have seen your tears. Behold, I will add fifteen years to your life.
Joel 1:14
Consecrate a fast; call a solemn assembly. Gather the elders and all the inhabitants of the land to the house of the LORD your God, and cry out to the LORD.
Joel 2:14
Who knows whether he will not turn and relent, and leave a blessing behind him, a grain offering and a drink offering for the LORD your God?
Amos 5:15
Hate evil, and love good, and establish justice in the gate; it may be that the LORD, the God of hosts, will be gracious to the remnant of Joseph.
Jonah 1:6
So the captain came and said to him, "What do you mean, you sleeper? Arise, call out to your god! Perhaps the god will give a thought to us, that we may not perish."
Jonah 3:9-10
Who knows? God may turn and relent and turn from his fierce anger, so that we may not perish."
James 4:9-10
Be wretched and mourn and weep. Let your laughter be turned to mourning and your joy to gloom.