The Means of Grace that Wesley frequently mentions in concert with prayer is fasting. Now, I can hear what's going on inside you. "Fasting," you say, "now you've quit preaching and gone to meddling." In our self-indulgent society, fasting is an almost unheard-of discipline.
I wish that I could tell you that there was some trick to this that could explain it away and make us feel better about it. It would be comfortable if we could say, "Now, in the Greek, this term doesn't actually mean what it sounds like, and so and so and like that." But, that is not the case. The word means exactly what you think it means: intentionally doing without food for a specific period of time.
From the beginning, Methodist have affirmed the practice of fasting. Our General Rules, which cannot and have not been amended, read:
It is expected of all who desire to continue in these societies that they should continue to evidence their desire of salvation...By attending upon all the ordinances of God; such are: The public worship of God.
The ministry of the Word, either read or expounded.
The Supper of the Lord.
Family and private prayer. Searching the Scriptures.
Fasting or abstinence.
When potential ministers in the United Methodist Church are being examined in the clergy session, they are still asked the historic questions formulated by John Wesley, including question number sixteen: Will you recommend fasting and abstinence by precept and example?
Wesley did understand that people found themselves in varying circumstances, and so he recognized degrees of fasts.
As to the degrees or measures of fasting, we have instances of some who have fasted several days together. So Moses, Elijah, and our blessed Lord, being endued with supernatural strength for that purpose, are recorded to have fasted without intermission "forty days and forty nights." But the time of fasting more frequently mentioned in Scripture is one day, from morning till evening. But besides these they had also their half-fasts on the fourth and sixth days of the week (Wednesday and Friday) throughout the year; on which they took no sustenance till three in the afternoon, the time when they returned from the public service.
Nearly related to this is what our Church seems peculiarly to mean by the term "abstinence"; which may be used when we cannot fast entirely, by reason of sickness or bodily weakness. This is the eating little; the abstaining in part; the taking a smaller quantity of food than usual. I do not remember any scriptural instance of this. But neither can I condemn it, for the Scripture does not. It may have its use, and receiving a blessing from God.
The lowest kind of fasting, if it can be called by that name, is the abstaining from pleasant food. Of this we have several instances in Scripture, besides that of Daniel and his brethren: who from a peculiar consideration, namely, that they might "not defile themselves with the portion of the king's meat, nor with the wine which he drank" (a "daily provision" of which "the king had appointed for them"), "requested" and obtained of "the prince of the eunuchs" "pulse to eat, and water to drink". (Daniel l:5ff)[1]
The reasons for fasting are several. Fasting is an offering to God at its very basic level. When you think about it, outside of the air we breathe, nothing is more fundamental than the food we eat in sustaining human life. When we think of offerings, most of us reach for our wallets, either to pull them out or to cover them up. But there are other gifts we can give to God, and some of them are much more precious than dollars and cents. Look at it this way: in fasting, we are surrendering to God the very thing which keeps us alive. We are saying to God that God is more important than sustenance, more precious than life itself. When we fast, for a little while, we give up a portion of living as a sacrifice to God.
It is expected that when we fast, we would give the time normally dedicated to food over to God in some way. That is to say that when we fast, we don't use that time to clean out the garage or to refine a sales report. Part of the practice of fasting is to take the time that would have been used shopping for, preparing, consuming, and cleaning up after a meal, and spend it instead in prayer or meditation or some other devotional activity. Fasting is not a way of squeezing more into a day. Fasting is a way of giving more of our day.
Fasting also involves a sense of planning and intentionality. You can't say at noonday, "Oh, I think I'll fast today." Fasting takes a little care. You wouldn’t push all the food you could stand down your throat and then begin a fast. That both misses the principle behind the entire thing, and it would make you extraordinarily uncomfortable for the duration of your fast. Winding down with a little less food would be more profitable.
Some of you remember back in the mid-sixties, when the antiwar movement got into full swing. Hear me, now, I'm not about to talk politics, I just seek to illustrate! Back when the war protest movement got under way, one of the symbols of the protest was to grow one's hair long. For these people, it wasn't a fashion, it was a statement. The reason given was that you can't grow long hair overnight. You have to resolve to let your hair grow and then stick with it. Shoulder-length or longer hair says, "I'm serious about this."
Fasting was a common faith practice in the Old Testament. And special fasts were frequently called in order to petition God for particular purposes. In the New Testament, among the many examples of fasting, we remember how Jesus said of a particularly strong demon, "This type only comes out through prayer and fasting" (Mark 9:29).
The Jews of Jesus' time fasted twice a week, on Tuesday and Thursday. The early church practice became Wednesday and Friday. Part of this was so as not to be confused with the synagogue. Partly, too, the Church fasted on Wednesday because it was midweek. It fasted on Friday because it was the day on which the Lord made His great sacrifice. Finally, I suppose we should look at the language Jesus used. He did not say, "If you fast." He didn't teach, "Should you choose to fast."
Sermon on the Mount contains no instruction about, "and if you get around to thinking about entertaining the notion of considering a fast." Jesus said, "And when you fast..." He apparently assumed that people of faith would fast.
So, Wesley termed fasting a Means of Grace.