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.
The apostle Paul, through the leading of the Holy Ghost, made his way through Paphos preaching God's word. While in that country, Paul faced great resistance especially from the likes of a false prophet named Bar-jesus. Yet, in the midst of this chaos, the Bible mentions a prudent man named Sergius Paulus, the deputy of the country. He desired to hear the message preached by God's man. Sergius Paulus wanted to hear the truth because a prudent man desires to hear it no matter the opposition and the attempts to silence the words of God. Unfortunately, there seem to be many more people like the false prophet today. They want little or nothing to do with the word of God. Yet, a prudent man, whether he agrees or disagrees with what he hears, will desire to hear the words of God. He then ponders those words as he makes his decisions concerning his daily life and eternal destination.