Most Christians would consider biblical fasting a very unpleasant undertaking. Considering the complexities of the affliction offered by fasting might better help to understand its value. In our passage, the people of God determined to fast so that they might afflict themselves before the Lord. Several other passages discuss this affliction in even more detail. Isaiah 58:3 and 5 describes the affliction as not merely an affliction of the flesh, but also an affliction of the soul. Additionally, we learn that fasting humbles (Psalm 35:13) and chastens (Psalm 69:10) the soul. Fasting involves much more than merely opposition to one’s flesh. Fasting directly afflicts, chastens, and humbles the soul. Perhaps this is why it is so difficult to fast and so beneficial to do so.
Fasting, similar to other actions in life, has specific purposes and appointed times. The Bible offers various reasons why people might fast: an immediate need in prayer (2 Samuel 12:16), a need to loosen the bands of wickedness or undo heavy burdens (Isaiah 58:6), during times of elevated conflict or duty in service (Matthew 17:21; Acts 13:3), as a symbol of mourning (2 Samuel 1:12), and as an outward manifestation of true repentance (Jonah 3:5). This list is not exhaustive, but simply demonstrates that God’s people have many good reasons for fasting. Even if none of these circumstances surfaces in our lives, we should fast because we know that the Lord expects us to do so.
Fasting should play a prominent role in the life of a Christian. Just as believers ought to pray, witness, study, and give, we should also fast. In fact, the Lord's words assumed the Christian would fast when He said, “when ye fast” (Matthew 6:16), not IF ye fast. The question was never to be whether or not we would fast, but how we would do so “when” we fast. Fasting was not prominent among the disciples, but the Lord explained that His departure would signify an elevated need for fasting (Mark 2:20). The life of the apostle Paul confirmed this as he said he was “in fastings often” (2 Corinthians 11:27). It was a common practice of Paul’s devotion to the Lord to deprive his flesh of food, drink, and physical pleasures. The Lord not only desired for the early believers to fast, but His people ought to have times of fasting until He returns.
