Derek Prince (1915-2003) has left the church a rich legacy of biblical preaching and teaching. He believed that fasting is fundamental to a life of Christian service in God’s kingdom. IFA has offered a booklet, How to Fast Successfully, as a resource, but here it is in a daily devotional format, covering both the “mechanics” of fasting and its singular blessing to the Christian’s life.

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Whether you have a depth of knowledge and experience in the spiritual discipline of fasting or are a newcomer to the subject, you will find yourself challenged and growing spiritually as you study and embrace these concepts. Please stick through to the end of the series. You will not regret engaging in this detailed study and its application in your own experience.

Lesson One: What is fasting?

The theme of this study is “how to fast successfully.” This subject does not readily lend itself to a sermon, but rather to some practical teaching on various aspects of fasting. Many people ask: “How do I fast? How long do I fast? How often should I fast? How should I break my fast? ” The purpose of this study is to answer these questions and to clear up some misconceptions about fasting.

I think it is good to begin with the definition of fasting. The definition I have used several times is: Fasting is abstaining from food for spiritual purposes. Normally, fasting is not abstaining from fluids but only from solid food. Although there were occasions in the Bible when people did fast without food or without water for as long as 40 days, for this study we will consider fasting as abstaining from food for spiritual purposes.

Many of the people who have asked, “How do I fast?” have been Christians and members of churches for many years. Yet, apparently no one has ever taught them about fasting, even though the Bible has much to say about the subject. Since most of these people know something about prayer, it may be good to begin by pointing out a parallel between fasting and praying.

In the Sermon on the Mount in Matthew 6, when Jesus speaks first about praying and then about fasting, He uses similar language in talking about both topics. The main difference is that when He talks about praying He includes a pattern prayer which we call the Lord’s Prayer. But I think there is a basic parallel between fasting and praying, and I’ll point out two aspects of it.

We all know we can pray as individuals, and most of us are also familiar with praying in groups. Group praying we usually refer to as a prayer meeting. Individual praying is what we do when we’re by ourselves. I believe there is the same distinction in fasting: there is group fasting, where people fast together; and there is individual fasting, where a person fasts on his own.

We are also familiar with two kinds of prayer: 1) regular prayer at a set time each day, and 2) special times of prayer when the Holy Spirit leads us to take extra time beyond our usual pattern of prayer for a special need. The same, I believe, is true of fasting. I think fasting should be a regular practice in the life of every disciplined Christian. But beyond these regular times of fasting, there are times when the Holy Spirit leads us to give additional emphasis to fasting.

So we see that there is a parallel between praying and fasting. Just as there is individual prayer and collective prayer, so there is also individual fasting and collective fasting. Just as there are normal patterns of prayer and there are times of special prayer, so there should be normal patterns of fasting in the life of every Christian, and there should be special times of fasting as the Holy Spirit leads.

Listen to this entire series as an hour-long audio teaching on our YouTube channel. Click HERE.