Christian fasting. What does the Bible have to say about this?
In the bible there are very many examples of fasting like in the Old Testament law specifically required prayer and fasting for only one occasion, which was the Day of Atonement. This custom became known as “the day of fasting” (Jeremiah 36:6) or “the Fast” (Acts 27:9). Moses fasted during the 40 days and 40 nights he was on Mount Sinai receiving the law from God (Exodus 34:28). King Jehoshaphat called for a fast in all Israel when they were about to be attacked by the Moabites and Ammonites (2 Chronicles 20:3). In response to Jonah’s preaching, the men of Nineveh fasted and put on sackcloth (Jonah 3:5). Prayer and fasting was often done in times of distress or trouble. David fasted when he learned that Saul and Jonathan had been killed (2 Samuel 1:12). Nehemiah had a time of prayer and fasting upon learning that Jerusalem was still in ruins (Nehemiah 1:4). Darius, the king of Persia, fasted all night after he was forced to put Daniel in the den of lions (Daniel 6:18).
Christian fasting is more than denying ourselves food or something else of the flesh - it’s a sacrificial lifestyle before God. In Isaiah 58; we learn what a “true fast” is. It’s not just a one-time act of humility and denial before God, it’s a lifestyle of servant ministry to others. As Isaiah tells us, fasting encourages humility, loosens the chains of injustice, unties the chords of the yoke, frees the oppressed, feeds the hungry, provides for the poor, and clothes the naked. This concept of fasting isn’t a one day thing - it’s a lifestyle of servant living for God and others.