It is good to fast, but it is important to know why you should fast. One of the reasons why we fast is so that we can be empowered to deal with demons and forces of darkness. In Matthew 17:14-21, a demon-possessed boy was brought to Jesus’ disciples, but they could not cast out the demon. They later asked the Lord why. He told them that some demonic cases may not be solved by praying alone, but by combining prayers with fasting. We fast in order to be battle-ready, so that whenever the devil raises his ugly head, we are able to give him a good knock. Some people are surprised and disappointed when they do not succeed in casting out demons after quoting Luke 10:19. This Scripture says:
“Behold, I give unto you power to tread on serpents and scorpions, and over all the power of the enemy: and nothing shall by any means hurt you.”
If you want this Scripture to be effective in your life, then you must learn to fast and win souls to Christ. When you win souls to Jesus, you automatically put on the boots of the gospel, and as a result, no demon will be able to harm you.
 
Moreover, we also fast while preparing for high-powered ministrations, just like our Master who began His ministry with a fast (Matthew 4:1-2). Some people ask God to fulfil His promise that we would do the same works Jesus did and even greater works (John 14:12). To those people, Jesus says “Fine, simply start where I did – with a 40-day fast.” Many years ago, during the centenary celebration of modern Pentecostalism in Azusa, Los Angeles, a lot of speakers from prominent ministries were invited from across the globe. From Africa, only two people were invited to speak, and by the grace of God, I was one of them. There was a special room where the speakers waited before moving to the stage. All kinds of food and drinks were available in this room. When I got there, I saw those slated to speak eating, drinking and chatting. An usher asked me what I would like to have, but I declined. The lady then asked, “Won’t you take even a cup of tea?” In my heart, I knew that was not the appropriate time for me to eat or drink. It was time to hook on to the Spirit so that my ministration would be impactful; so, I took nothing. After God used other speakers powerfully, when it was my turn, the fire fell. If you truly want your sermons to be effective, feed your spirit and not your flesh. As you wait on Him from today, you will have greater results. Written by Pastor E.A. Adeboye.