Fasting in the Bible is a spiritual discipline that, when performed with the right motive, expresses humility before Jehovah, dependence upon Him, and devotion to His will. However, the Scriptures make clear that fasting can either be a means of genuine spiritual focus or an act of hypocrisy, depending on the heart condition of the one fasting. Jesus’ words in Matthew 6:16–18 provide the proper perspective: fasting must never be used as a display of self-righteousness or piety before men, but as a humble and private act before God.

Fasting in the Old Testament: Acts of Humility and Dependence

In the Hebrew Scriptures, fasting was often an outward expression of inward repentance, grief, or earnest supplication before Jehovah. The Hebrew term tsom (צום) generally refers to abstaining from food, and sometimes water, for a limited period. This act was not a command given universally but was used voluntarily under particular circumstances.

One of the earliest recorded fasts is in Judges 20:26, when the Israelites fasted before Jehovah after suffering defeat, seeking His guidance and favor. David fasted in times of distress, mourning, and repentance (2 Samuel 12:16–23; Psalm 35:13). Fasting was often combined with prayer to demonstrate humility and a sincere desire for Jehovah’s help (Ezra 8:21–23). Ezra proclaimed a fast at the river Ahava before leading the exiles back to Jerusalem, stating, “That we might humble ourselves before our God, to seek from Him a safe journey.” Their fasting reflected faith, not superstition, and Jehovah answered their prayer for protection.

The prophet Joel urged the unfaithful Israelites, “Return to Me with all your heart, with fasting, with weeping, and with mourning” (Joel 2:12). Here, fasting symbolized the genuineness of repentance, not merely the outward act of abstaining from food. Jehovah sought contrite hearts, not empty rituals. Isaiah 58 provides a clear rebuke of improper fasting, where the people fasted while practicing injustice and oppression. Jehovah declared, “Is it a fast like this that I choose, a day for a person to humble himself? … Is this not the fast that I choose: to loosen the bonds of wickedness?” (Isaiah 58:5–6). Thus, fasting without righteousness was unacceptable.

The only fast explicitly commanded under the Mosaic Law was on the annual Day of Atonement (Yom Kippur). Leviticus 16:29–31 states that the Israelites were to “afflict their souls” on that day, an idiom referring to fasting. This observance reminded the nation of their sinfulness and dependence upon Jehovah’s mercy and forgiveness. It was not a punishment but a solemn acknowledgment of human imperfection before a holy God.

Fasting in the New Testament: From Ritual to Relationship

When Jesus began His ministry, fasting was a familiar Jewish practice. Yet, in the Sermon on the Mount, He corrected common abuses. “When you fast, do not look gloomy like the hypocrites,” He said, “for they disfigure their faces that their fasting may be seen by others. Truly, I say to you, they have received their reward. But when you fast, anoint your head and wash your face, that your fasting may not be seen by others but by your Father who is in secret” (Matthew 6:16–18).

Jesus’ instruction emphasizes motive. Fasting was to be between the individual and God, not a public show of devotion. The hypocritical Pharisees often fasted twice a week (Luke 18:12), but their practice had become a ritualized display of self-righteousness. Jesus condemned such hypocrisy. He did not forbid fasting itself but exposed the spiritual emptiness of fasting done to impress others. True fasting must come from humility and spiritual focus, not pride.

After His baptism, Jesus Himself fasted for forty days in the wilderness (Luke 4:1–2). This fast prepared Him for the ministry ahead and His confrontation with Satan. His example demonstrates that fasting, when done for spiritual readiness and focus on Jehovah’s purpose, can be beneficial. However, Jesus never commanded His followers to imitate His forty-day fast, nor did He instruct them to establish any commemorative fasting period.

The apostolic record shows that fasting continued to be practiced voluntarily by early Christians in certain contexts. Paul and Barnabas fasted and prayed when appointing elders in the congregations (Acts 14:23), indicating their dependence on Jehovah’s guidance in important spiritual decisions. However, these occasions were exceptional and situational, not normative or commanded.

The Motives That Displease God

Scripture clearly identifies improper motives for fasting. The first is to impress others. When religious acts are performed for human recognition rather than divine approval, they lose their spiritual value entirely. Jesus’ warning in Matthew 6:16–18 makes it clear that such fasting has already received its “reward”—human praise, not God’s blessing.

The second wrong motive is self-righteousness. The parable of the Pharisee and the tax collector (Luke 18:9–14) illustrates this vividly. The Pharisee boasted, “I fast twice a week; I give tithes of all that I get,” but his fasting served to elevate himself, not to humble himself before God. The tax collector, who simply pleaded for mercy, went home justified. Jehovah accepts humility, not self-exaltation.

A third improper motive is attempting to compensate for deliberate sin. In Isaiah 58:3–4, the people complained that Jehovah had not noticed their fasting, yet their fasts were accompanied by strife and oppression. Fasting cannot substitute for repentance and obedience. God will not be manipulated by ritual or outward forms of devotion that mask disobedient hearts.

A fourth improper motive is religious formalism—fasting merely because it is traditional or expected. Jehovah desires genuine affection from His servants, not hollow observance. As Isaiah 58:5–7 reveals, acceptable fasting must be accompanied by righteousness, justice, and mercy.

Fasting and the Christian Era: Freedom, Not Obligation

With the coming of Christ and the fulfillment of the Law, fasting lost its covenantal requirement. The Mosaic Law—including the Day of Atonement fast—was fulfilled and brought to an end by Jesus’ perfect sacrifice (Hebrews 9:24–26; Romans 10:4). The atonement He provided was permanent, rendering all ritual fasting for sin obsolete. The apostle Peter affirmed that “Christ also suffered once for sins, the righteous for the unrighteous, that He might bring us to God” (1 Peter 3:18). Thus, fasting is no longer a commanded practice under the New Covenant.

The apostle Paul affirmed Christian liberty in matters such as fasting. In Romans 14:1–4, he taught that each believer must act according to conscience, without judging others. A Christian may choose to fast to draw closer to God, to express repentance, or to seek clarity in prayer, but this decision is voluntary. It is not a sign of superior faith nor a requirement of Christian life.

Furthermore, Scripture never associates fasting with joy. It is typically connected with mourning, repentance, or urgent supplication. True Christian worship, by contrast, is characterized by joy and gratitude. Paul described Jehovah as “the happy God” (1 Timothy 1:11), and Christians reflect His joy through the fruitage of the Spirit (Galatians 5:22). The focus of worship is therefore not abstinence but thankful service, love, and obedience.

Misconceptions Concerning Fasting

A few textual and traditional misunderstandings have led to confusion about fasting among Christians.

First, some older translations, such as the King James Version, include references to fasting that do not appear in the earliest Greek manuscripts. For instance, 1 Corinthians 7:5 in the KJV reads, “that ye may give yourselves to fasting and prayer,” but the word “fasting” (nēsteia) is absent in the best textual evidence. Similar later additions appear in Matthew 17:21, Mark 9:29, and Acts 10:30. These were scribal expansions intended to harmonize with ascetic practices but were not part of the inspired text. Modern critical editions correctly omit these interpolations.

Second, the practice of fasting forty days in imitation of Jesus’ wilderness fast has no Scriptural basis. Jesus never commanded or encouraged such an observance. The historical development of Lent arose centuries later, well after apostolic times. The New Catholic Encyclopedia acknowledges that early Christian fasting before Easter originally lasted only one or two days, with the forty-day period first mentioned at the Council of Nicaea (325 C.E.), long after the apostolic era.

Third, fasting in connection with the commemoration of Jesus’ death was never instituted by Christ. At the Last Supper, Jesus commanded the Memorial of His death using bread and wine (Luke 22:14–18). Paul’s instructions in 1 Corinthians 11:33–34 encouraged believers to eat at home before gathering for the Lord’s Supper, not to fast. While Jesus foretold that His disciples would fast when He was taken away (Matthew 9:15), He spoke descriptively, not prescriptively; their fasting would express grief during His death, not a recurring ordinance.

The Spiritual Value of Fasting Today

While fasting is not required under the New Covenant, it may still hold personal spiritual value when practiced with humility, sincerity, and right motives. It can help Christians focus more intently on prayer, express sorrow for sin, or seek Jehovah’s wisdom during difficult decisions. Yet, it must never be treated as a ritual that earns divine favor or replaces faith, repentance, and obedience.

In all such matters, balance and discretion are necessary. Fasting should not harm health or become an ascetic display. The purpose must always be to deepen one’s dependence on Jehovah, not to achieve mystical experiences or self-purification. The believer who chooses to fast privately does so as an expression of devotion, not as a means of public recognition. The believer who chooses not to fast is equally faithful, for Christ has freed His people from the constraints of ritual observance.

The biblical principle remains: Jehovah values humility and obedience over ceremony. Whether one fasts or not, what matters is a heart that seeks to do His will, loves His truth, and follows His Son faithfully. As Micah 6:8 declares, “He has told you, O man, what is good; and what does Jehovah require of you but to do justice, to love kindness, and to walk humbly with your God?”

You May Also Enjoy

Pledges of Marriage in Matthew 1:18 and the Conception of Jesus Christ

About the Author

CLICK LINKED IMAGE TO VISIT ONLINE STORE

CLICK TO SCROLL THROUGH OUR BOOKS