Man’s conviction is a work of God that begins within a man, hidden from the view of others. Yet, that work ultimately manifests itself on the outside. As the apostle Paul reasoned with Felix concerning righteousness, temperance, and judgment to come, the Spirit of God took the sword of the Spirit (the word of God) and worked within Felix. Though Felix’s conviction did not lead to his immediate conversion, it visibly affected him by causing him to outwardly tremble. The book of Daniel tells us that the Lord interrupted king Belshazzar’s party and caused his knees to smite against each other (Daniel 5:1-6). The Second Book of the Kings tells of Josiah’s conviction that was manifested through his weeping and the rending of his clothes (2 Kings 22:19).
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.
