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

Ezra 9:3-5
When I heard this report, I tore my tunic and cloak, pulled out some hair from my head and beard, and sat down in horror. / Then everyone who trembled at the words of the God of Israel gathered around me because of the unfaithfulness of the exiles, while I sat there in horror until the evening offering. / At the evening offering, I got up from my humiliation with my tunic and cloak torn, and I fell on my knees, spread out my hands to the LORD my God,

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.

Esther 4:3
In every province to which the king’s command and edict came, there was great mourning among the Jews. They fasted, wept, and lamented, and many lay in sackcloth and ashes.

Joel 1:14
Consecrate a fast; proclaim a solemn assembly! Gather the elders and all the residents of the land to the house of the LORD your God, and cry out to the LORD.

Jonah 3:5
And the Ninevites believed God. They proclaimed a fast and dressed in sackcloth, from the greatest of them to the least.

Matthew 4:2
After fasting forty days and forty nights, He was hungry.

Acts 9:9
For three days he was without sight, and he did not eat or drink anything.

2 Corinthians 11:27
in labor and toil and often without sleep, in hunger and thirst and often without food, in cold and exposure.

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.

1 Samuel 1:7
And this went on year after year. Whenever Hannah went up to the house of the LORD, her rival taunted her until she wept and would not eat.

1 Kings 21:27
When Ahab heard these words, he tore his clothes, put on sackcloth, and fasted. He lay down in sackcloth and walked around meekly.

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

Isaiah 58:3-5
“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?

Zechariah 7:3
by asking the priests of the house of the LORD of Hosts, as well as the prophets, “Should I weep and fast in the fifth month, as I have done these many years?”