God's Word contains commands about many things, from frequency of prayer and expressions of worship to relationships with other people (1 Thess. 5:17; Deut. 6:5; John 13:34). Surprisingly, though, there is no place in the scriptures where the believer is specifically instructed to fast.
Yet the words "when you fast" (Matt. 6:16, emphasis added) show Jesus' expectation that His followers would practice this discipline. And there are many biblical examples of godly people who abstained from certain activities in order to draw close to God.
Before we go further, it is important to dispel a popular misunderstanding. Fasting doesn't serve to change God's mind, speed up His answer, or manipulate His will. Instead, it prepares us to hear from Him by temporarily laying aside something that vies for our attention or devotion—such as food, sleep, or a time of intimacy with a spouse.
Denying ourselves in this way makes us better able to focus on Christ and hear Him clearly. His Spirit often starts by bringing to mind sin that needs to be confessed. In so doing, He sanctifies our thoughts—then He can use this precious time to intensify our desire for Him, reveal His Will, and grant understanding and peace. In essence, fasting binds us to Him in such oneness that we won't ever be the same again.
Do you want to see God move in awesome ways? By removing anything that hinders your focus, you can fix attention solely on the Creator and cry out to Him regarding your needs. As you gain understanding about your Father and yourself, you will grow closer to Him.