Though the means of worldly safety have changed throughout time, people have always put their trust in various things to offer temporary safety. The Bible depicts those who trusted in fenced walls (Deuteronomy 28:52), nations (Isaiah 30:2-3), horses, horsemen and chariots (Isaiah 31:1), weapons (Psalm 44:6), and mountains (Amos 6:1). People today place their trust in weapons, security systems, governments, insurance policies, and even medicines. Though the sources of trust have changed, the Lord remains just as grieved today when men place their trust upon the things of this world rather than upon Him. Ultimately, every source of worldly safety will fail, often in the moment we perceive as our greatest time of need.
To trust in someone or something involves an act of the will. The focus of this trust is something that each individual must personally decide. David expressed as much when he said, “Some trust in chariots, and some in horses: but we will remember the name of the LORD our God” (Psalm 20:7). David identified a few of the many things upon which one might trust. The Bible also refers to those who trust in vanity (Isaiah 59:4), others in lies (Jeremiah 7:8), and still others in riches (1 Timothy 6:17). Interestingly, the Lord does not force any individual to trust in Him, nor is anyone ever forced to trust in the things of this world. It is important to point out that one’s trust cannot be divided. An individual cannot simultaneously trust in vanity, riches, or lies while trusting in the Lord.
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.
