Bible Verses About Fasting and Prayer

What the Bible says

1. Scripture

   Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward. But thou, when thou fastest, anoint thine head, and wash thy face; That thou appear not unto men to fast, but unto thy Father which is in secret: and thy Father, which seeth in secret, shall reward thee openly.

   Jesus does not ask whether His disciples will fast; He says “when ye fast.” The issue is motive. Hypocritical fasting seeks a human audience through a sad face and a carefully ruined appearance. Secret fasting seeks the Father. Prayer and fasting that are aimed at applause already have their reward. Biblical fasting belongs with private devotion, not spiritual theater.

2. Scripture

   Is it such a fast that I have chosen? a day for a man to afflict his soul? is it to bow down his head as a bulrush, and to spread sackcloth and ashes under him? wilt thou call this a fast, and an acceptable day to the Lord? Is not this the fast that I have chosen? to loose the bands of wickedness, to undo the heavy burdens, and to let the oppressed go free, and that ye break every yoke? Is it not to deal thy bread to the hungry, and that thou bring the poor that are cast out to thy house? when thou seest the naked, that thou cover him; and that thou hide not thyself from thine own flesh?

   Isaiah exposes fasting that looks devout while the life stays hard toward the poor and the oppressed. Afflicting the body, bowing the head, and wearing sackcloth mean little if wickedness, injustice, and neglect of neighbor continue. The fast God chooses is joined to mercy, justice, and concrete care for the hungry and the cast out. Prayer without repentance and compassion becomes empty ritual.

3. Scripture

   Then was Jesus led up of the Spirit into the wilderness to be tempted of the devil. And when he had fasted forty days and forty nights, he was afterward an hungred. And when the tempter came to him, he said, If thou be the Son of God, command that these stones be made bread. But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God.

   Jesus’ own forty-day fast shows that fasting is not foreign to the Christian life—He Himself practiced it under the Spirit’s leading. Tempted to turn stones into bread, He answered that life is sustained by God’s word, not bread alone. Fasting here is not a technique for power; it is obedience and dependence while facing spiritual conflict. Hunger is real, yet Scripture remains the governing authority.

4. Scripture

   And I set my face unto the Lord God, to seek by prayer and supplications, with fasting, and sackcloth, and ashes:

   Daniel joins fasting to prayer, supplication, sackcloth, and ashes. The posture is humility. He is not bargaining with God through hunger; he is seeking the Lord with concentrated earnestness. Fasting intensifies prayer; it does not replace it.

5. Scripture

   Therefore also now, saith the Lord, turn ye even to me with all your heart, and with fasting, and with weeping, and with mourning: And rend your heart, and not your garments, and turn unto the Lord your God: for he is gracious and merciful, slow to anger, and of great kindness, and repenteth him of the evil.

   Joel’s call ties fasting to wholehearted return. Weeping and mourning are appropriate, but the decisive command is to rend the heart, not only the garments. Fasting serves repentance and turning to a gracious God—not a performance of grief that leaves the inner life unchanged.

6. Scripture

   As they ministered to the Lord, and fasted, the Holy Ghost said, Separate me Barnabas and Saul for the work whereunto I have called them. And when they had fasted and prayed, and laid their hands on them, they sent them away.

   In Acts, fasting and prayer mark the church’s seeking of God for mission. The Holy Spirit’s call to set apart Barnabas and Saul comes in that atmosphere of ministry and fasting, and the church responds again with fasting and prayer before sending them. Corporate fasting can accompany major decisions without becoming a superstition that guarantees outcomes.

7. Scripture

   Then I proclaimed a fast there, at the river of Ahava, that we might afflict ourselves before our God, to seek of him a right way for us, and for our little ones, and for all our substance. For I was ashamed to require of the king a band of soldiers and horsemen to help us against the enemy in the way: because we had spoken unto the king, saying, The hand of our God is upon all them for good that seek him; but his power and his wrath is against all them that forsake him. So we fasted and besought our God for this: and he was intreated of us.

   Ezra proclaims a fast so the people might afflict themselves before God and ask for a right way. Their confidence is in the Lord’s hand, not in borrowed military protection. They fasted and prayed—and Scripture records that God was intreated of them. The example models dependence and petition, not a formula that every fast will produce the same visible result.

A grounded way to understand this

What fasting and prayer mean in the Bible is simple and searching: God’s people sometimes set ordinary food aside so they can seek Him with fuller humility, repentance, and attention. Why Christians fast and pray follows from that purpose—not to impress others, not to manipulate heaven, and not because abstinence itself earns salvation, but to turn the heart toward God in seasons of need, confession, guidance, or costly obedience. Biblical examples vary in length and setting: Daniel’s private seeking, Joel’s call to national return, Ezra’s journey-fast, Jesus’ wilderness obedience, and the church’s fasting in Acts. What they share is dependence. Isaiah adds the non-negotiable warning that a hungry stomach cannot cover an unrepentant life. Jesus adds the non-negotiable warning that a public show of fasting already has its reward. Practically, approach fasting with honesty and wisdom. Choose a clear purpose before God, a defined length you can keep with integrity, and continued prayer. Do not treat any particular schedule as mandatory for all Christians unless Scripture itself makes that claim for your situation—it generally does not. If medical reasons make food abstinence unwise, you can still practice focused seeking through prayer, Scripture, repentance, and mercy toward others. Fasting is a servant of seeking God; it is never a substitute for faith, obedience, or love.

Related answers

• Prayer & ConnectionWhat Does the Bible Say About Fasting?Biblical fasting is voluntarily going without food for a time in order to seek God with humility and focused…Read
• Prayer & ConnectionHow to Fast BiblicallyBiblical fasting is done with humility, prayer, and sincerity. The focus is not simply avoiding food, but…Read
• Prayer & ConnectionWhy Do Christians Fast?Christians fast to seek God more deeply through prayer, humility, repentance, and spiritual focus. Fasting is not…Read
• Prayer & ConnectionHow to Fast for Spiritual BreakthroughThe Bible presents spiritual breakthrough through humility, repentance, prayer, and dependence on God rather than…Read
• Prayer & ConnectionWhat Does the Bible Say About Prayer?The Bible presents prayer as honest communication with God. It is not a performance of perfect words, and it is not a…Read

People also ask