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.
The children of Israel had an important decision to make: whether to obey the Lord or unwisely refuse to obey Him. The Lord assured His children that their obedience would pay off with fruitful dividends. He promised to bless their obedience and curse their disobedience. The Bible clearly lists the blessings of obedience (Deuteronomy 28:1-14). Though the blessings of obedience can vary from one person to the next, obedience always yields God's blessing. For instance, Abraham was told that all nations would be blessed in his seed because he obeyed the voice of the Lord (Genesis 22:18). Isaiah told the Israelites that, if they would obey, they would eat the good of the land (Isaiah 1:19). Jeremiah told his audience that their obedience would cause it to be well with their soul and that their souls would live (Jeremiah 38:20). Blessings received from obedience may vary, but the blessings of obedience are well worth any temporary fleshly sacrifice.
