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.
Modern Christianity has been redefining Bible terminology and fasting is no exception. Perhaps this is because Christians want to look spiritual without the necessary dedication. Some claim to be fasting from certain things like caffeine or sugar intake. The Bible does not offer anyone this type of latitude. True biblical fasting involves much more than refraining from some handpicked pleasure. According to our passage, Paul entreated the people to take meat because they had been fasting for two weeks. Esther 4:16 reveals that fasting consists of taking no food or drink. Although some Bible teachers have suggested that fasting means to simply refrain from earthly joys, fasting in the Bible always includes refraining from food or from both food and drink. Even the results of fasting identify that it is associated with depriving the body of food. In Psalm 109:24, David said, “My knees are weak through fasting; and my flesh faileth of fatness.” Foregoing earthly pleasures is a byproduct of fasting, not the sole object.
Believers should be zealous of good works, but their zeal must not spring from a position of ignorance. The Bible points to the Jews as a zealous people, but their zeal was not according to knowledge. Nobody worked harder trying to reach a righteous state than did the Jews. However, they failed to realize that true righteousness comes as an unmerited gift from God. Yet, the Jews were “ignorant of God's righteousness,” and went “about to establish their own righteousness” (Romans 10:3). Paul repeatedly testified concerning the futility of trying to earn God's favour through one’s own efforts (Acts 22:3; Philippians 3:6). Before Paul came to know Christ, he thought he should fight against Christ’s followers and zealously persecute the church of God. He even placed many of the new believers into prison and caused their deaths. Yet, he declared that all this was done in ignorance (1 Timothy 1:13). He, like the Jews, had a tremendous zeal, but that zeal was not according to knowledge.
Zeal involves a fervent desire to accomplish some particular feat. The Bible tells us that Christ died on the cross to redeem a people who would then become zealous of good works. Every Christian should strive to be zealous in his service to the Lord. Many believers during periods of great persecution zealously gave their lives for the gospel’s sake. Acts 15:26 tells of men who “hazarded their lives for the name of our Lord Jesus Christ.” These people recognized that they were no longer their own but God’s. They had been redeemed by the precious blood of the Lord Jesus Christ and willingly sealed that testimony with their own blood. The more the enemies of God persecuted them, the more freely the gospel spread.
