How to Fast Properly:

A Biblical Guide to a Powerful Spiritual Discipline

by J. Leoni

Fasting is one of the most profound spiritual practices available to believers. Throughout Scripture, it is repeatedly demonstrated as a means of drawing closer to God, seeking His guidance, and aligning our hearts with His will. Yet, many believers today struggle to understand fasting because it is rarely taught in depth. Without instruction, some approach fasting as an empty ritual or a religious obligation, while others avoid it entirely out of uncertainty.

This article seeks to provide a clear, biblical understanding of how to fast properly, aligning your heart, actions, and motives with God’s Word. Through Scripture, we will explore the steps and spiritual significance of fasting, offering insights that can transform this practice into a life-changing encounter with the Most High.

Fasting begins with the heart. Before abstaining from food or undertaking any physical discipline, you must ask yourself why you are fasting. Jesus made it clear in Matthew 6:16-18 that fasting must be done with sincerity and humility, not as a public display of piety. He warned against the hypocrites who fasted with somber expressions to draw attention to their actions. Instead, Jesus said, “When you fast, put oil on your head and wash your face, so that it will not be obvious to others that you are fasting, but only to your Father, who is unseen.” This emphasizes that fasting is not for show but for deepening your relationship with God. Your motive matters deeply to Him.

The next step is prayer. Fasting without prayer is simply skipping meals. Prayer transforms fasting into a spiritual discipline by focusing your heart and mind on God. In Ezra 8:21, we see Ezra proclaim a fast to “humble ourselves before our God and seek from Him the right way for us.” This verse underscores the purpose of fasting as a way to seek God’s guidance. Whether you are fasting for direction, breakthrough, or intercession, prayer is the foundation that keeps your fast aligned with His will. As you prepare for your fast, spend time in prayer asking God to reveal His purposes and to strengthen you for the journey.

Before beginning your fast, decide what type of fast you will undertake and for how long. The Bible provides examples of various kinds of fasts. Jesus fasted for 40 days in the wilderness, consuming no food, as described in Matthew 4:1-2. This is an example of a total fast, where one abstains from all food and sometimes water. Another type is the partial fast, demonstrated by Daniel in Daniel 10:3, where he abstained from rich foods, meat, and wine for 21 days. You may feel led to fast for a specific length of time or to abstain from particular foods or activities. Let the Holy Spirit guide your decision, and ensure it is a fast you can commit to fully.

Fasting is also a time for confession and repentance. In Joel 2:12-13, God calls His people to return to Him with fasting, weeping, and mourning. He says, “Rend your heart and not your garments.” This reveals that fasting is about internal transformation, not outward performance. During your fast, ask God to search your heart. Confess your sins and forgive those who have wronged you, as Jesus taught in Mark 11:25: “When you stand praying, if you hold anything against anyone, forgive them, so that your Father in heaven may forgive you your sins.” Confession and forgiveness cleanse your heart and remove barriers between you and God.

As you fast, immerse yourself in prayer, worship, and Scripture. Matthew 4:4 reminds us, “Man shall not live by bread alone, but by every word that proceeds from the mouth of God.” Replace the time you would normally spend eating with spiritual nourishment. Dedicate specific times throughout the day to prayer, reading the Word, and worshiping God. Meditate on verses that align with the purpose of your fast. For instance, if you are fasting for direction, reflect on Proverbs 3:5-6: “Trust in the Lord with all your heart and lean not on your own understanding; in all your ways submit to Him, and He will make your paths straight.”

During your fast, be attentive to God’s voice. In Acts 13:2, the early church fasted and prayed, and the Holy Spirit gave them specific instructions to set apart Barnabas and Saul for His work. Similarly, God often speaks during times of fasting, revealing His plans and purposes. Keep a journal to record any scriptures, insights, or promptings you receive. Be still and allow Him to guide you.

Fasting isn’t just about abstaining from food; it’s about aligning your actions with God’s heart. Isaiah 58:6-7 captures the essence of true fasting: “Is not this the fast that I choose: to loose the bonds of wickedness, to undo the straps of the yoke, to let the oppressed go free, and to break every yoke? Is it not to share your bread with the hungry and bring the homeless poor into your house?” True fasting goes beyond personal sacrifice and extends into serving others. Consider using the time or resources you save during your fast to help those in need. Volunteer, give to the poor, or spend time interceding for others in prayer.

As your fast comes to an end, break it wisely. In 1 Corinthians 10:31, Paul reminds us, “So whether you eat or drink or whatever you do, do it all for the glory of God.” After an extended fast, it’s important to reintroduce food gradually, starting with light meals like fruits or soups. Use this time to thank God for sustaining you and to reflect on what He revealed during your fast. Ending a fast isn’t the end of the spiritual journey—it’s the beginning of a deeper walk with Him.

Finally, live out the lessons of your fast. Isaiah 58:8-9 promises that when we fast God’s way, “Your light will break forth like the dawn, and your healing will quickly appear; your righteousness will go before you, and the glory of the Lord will be your rear guard.” The breakthroughs and blessings you receive during your fast are meant to transform your life and deepen your obedience to Him. Carry forward the changes He has impressed on your heart, and continue seeking His presence in daily life.

Fasting is not a formula; it’s a deeply personal and spiritual discipline. Whether you are fasting for a specific need or simply to draw closer to God, the principles in His Word provide a clear path to follow. Approach your fast with humility, prayer, and a heart open to His leading, and you will experience the profound blessings and revelations that come from seeking Him. Let this be a time of transformation, not just for you, but for the Kingdom work He has called you to accomplish.