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.
Isaiah chapter 52 illustrates a well-beloved prophecy concerning the Lord Jesus Christ and His crucifixion. Verse 14 testifies to the seriousness of His crucifixion as it points out that Christ's “visage was so marred more than any man, and his form more than the sons of men.” These truths point to His physical sufferings, but in no way detract from the spiritual sufferings Christ suffered on the cross. The fact that He took our sins upon Himself remains beyond our comprehension. This same truth applies to the physical sufferings that were more than any man could withstand. With the crucifixion as its context, Isaiah chapter 52 declares that Christ would deal with prudence. The book of Hebrews reinforces this truth as it points out that He “for the joy that was set before him endured the cross” (Hebrews 12:2). The Lord's every action was performed with prudence. We, as the Lord's servants, ought to follow the example He set for us.
This passage provides a list of grievous sins in the eyes of the Lord. It speaks of those who call evil good, and good evil (Isaiah 5:20). It speaks of the wickedness of those who justify the wicked for reward (Isaiah 5:23), and pronounces a woe upon those who mingle and drink strong drink (Isaiah 5:22). By all appearances, this is a list of wicked and vile sins. Yet, it is in the midst of this list that we find a woe declared against “them that are wise in their own eyes, and prudent in their own sight” (Isaiah 5:21). As with everything in this world, there is a true prudence and there is a counterfeit. The Bible warns us to make sure our prudence is not just in our “own sight,” but is true in a scriptural sense.
The context of our passage speaks of judgment against Jerusalem and Judah. In this judgment the Lord vowed to remove much of the strength of the land. He promised to remove the mighty man and the man of war, the judge and the prophet, the honourable man and the counseller. The removal of these people would certainly weaken any city, town, or nation. Yet, it is in the midst of this list that the Lord included the prudent. Apparently, the prudent are the strength of any people just as much as their great warriors and judges. When all things are considered, this makes perfect sense. Those who are prudent make decisions that stabilize any people and provide future stability as well.
