Daniel 9:3
So I turned my attention to the Lord God to seek Him by prayer and petition, with fasting, sackcloth, and ashes.

Nehemiah 1:4
When I heard these words, I sat down and wept. I mourned for days, fasting and praying before the God of heaven.

Jonah 3:5-10
And the Ninevites believed God. They proclaimed a fast and dressed in sackcloth, from the greatest of them to the least. / When word reached the king of Nineveh, he got up from his throne, took off his royal robe, covered himself with sackcloth, and sat in ashes. / Then he issued a proclamation in Nineveh: “By the decree of the king and his nobles: Let no man or beast, herd or flock, taste anything at all. They must not eat or drink. ...

Joel 2:12-13
“Yet even now,” declares the LORD, “return to Me with all your heart, with fasting, weeping, and mourning.” / So rend your hearts and not your garments, and return to the LORD your God. For He is gracious and compassionate, slow to anger, abounding in loving devotion. And He relents from sending disaster.

2 Chronicles 20:3
Jehoshaphat was alarmed and set his face to seek the LORD. And he proclaimed a fast throughout Judah.

Ezra 8:21-23
And there by the Ahava Canal I proclaimed a fast, so that we might humble ourselves before our God and ask Him for a safe journey for us and our children, with all our possessions. / For I was ashamed to ask the king for an escort of soldiers and horsemen to protect us from our enemies on the road, since we had told him, “The hand of our God is gracious to all who seek Him, but His great anger is against all who forsake Him.” / So we fasted and petitioned our God about this, and He granted our request.

Psalm 35:13
Yet when they were ill, I put on sackcloth; I humbled myself with fasting, but my prayers returned unanswered.

Matthew 6:16-18
When you fast, do not be somber like the hypocrites, for they disfigure their faces to show men they are fasting. Truly I tell you, they already have their full reward. / But when you fast, anoint your head and wash your face, / so that your fasting will not be obvious to men, but only to your Father, who is unseen. And your Father, who sees what is done in secret, will reward you.

Acts 13:2-3
While they were worshiping the Lord and fasting, the Holy Spirit said, “Set apart for Me Barnabas and Saul for the work to which I have called them.” / And after they had fasted and prayed, they laid their hands on them and sent them off.

Luke 2:37
and then was a widow to the age of eighty-four. She never left the temple, but worshiped night and day, fasting and praying.

Acts 14:23
Paul and Barnabas appointed elders for them in each church, praying and fasting as they entrusted them to the Lord, in whom they had believed.

1 Samuel 7:6
When they had gathered at Mizpah, they drew water and poured it out before the LORD. On that day they fasted, and there they confessed, “We have sinned against the LORD.” And Samuel judged the Israelites at Mizpah.

2 Samuel 12:16
David pleaded with God for the boy. He fasted and went into his house and spent the night lying in sackcloth on the ground.

Isaiah 58:3-6
“Why have we fasted, and You have not seen? Why have we humbled ourselves, and You have not noticed?” “Behold, on the day of your fast, you do as you please, and you oppress all your workers. / You fast with contention and strife to strike viciously with your fist. You cannot fast as you do today and have your voice be heard on high. / Is this the fast I have chosen: a day for a man to deny himself, to bow his head like a reed, and to spread out sackcloth and ashes? Will you call this a fast and a day acceptable to the LORD? ...

Matthew 17:21
But this kind does not go out except by prayer and fasting.”