How often did Jesus and his followers fast?

zcihjdhyo6ieevshlnkgHow often did Jesus and the first generation of his followers fast? Was it an occasional thing, focused on specific events or causes? Or was it something more habitual and regular, an integral part of their devotional life?

As most studies of the subject point out, fasting in the Old Testament was associated either with particular festivals (such as the Day of Atonement), with particularly intense experiences (as with Moses spending 40 days in the presence of God on Mount Sinai), or with special seasons or feelings. Typically in the prophets and the writings, fasting is associated either with grieving, repentance, or intense prayer for a particular cause. There is nothing in any of these references to suggest that fasting was a habitual part of regular devotional activity.

But there are some fascinating clues to a change of perspective in the (so-called) inter-testamental period. The Book of Tobit relates stories set in the eighth century BC, but most believe it was written in the mid-second century BC (most scholars date the book of Daniel to a similar period).

Tobit 12.8–10 records the teaching of an angel as follows (in the style of sayings from Wisdom literature):

Prayer is good when accompanied by fasting, almsgiving, and righteousness. A little with righteousness is better than much with wrongdoing. It is better to give alms than to treasure up gold.

For almsgiving delivers from death, and it will purge away every sin. Those who perform deeds of charity and of righteousness will have fulness of life;

but those who commit sin are the enemies of their own lives.

What is striking here, in relation to the earlier Old Testament texts, is that fasting has now become a regular part of devotional activity. What is even more striking is the close relationship between the practices in this text and Jesus’ teaching in Matt 6.1–18:

Be careful not to do your ‘acts of righteousness’ in front of others, to be seen by them… So when you give to the needy, do not announce it with trumpets… And when you pray, do not be like the hypocrites… When you fast, do not look somber as the hypocrites do…

Here we have the same cluster of concerns—of righteousness, prayer, almsgiving, and fasting. And, once again, fasting is assumed to be a regular, habitual part of the devotional life, not something reserved for special occasions. This also fits with the question that is asked of Jesus and his disciples: ‘How is it that John’s disciples and the disciples of the Pharisees are fasting, but yours are not?’ (Mark 2.18). The TNIV has translated this in a way suggesting this was a continual practice—and for good reason. In the parallel in Luke 5.33, the question appears to be on the lips of Jesus’ critics who state: ‘John’s disciples often [Gk: pukna, frequently] fast and pray, and so do the disciples of the Pharisees, but yours go on eating and drinking.’ Matthew appears to be caught between Mark and Luke. Whilst most manuscripts have at Matt 9.14 John’s disciples asking the question ‘How is it that we and the Pharisees fast…?’, a minority tradition has added the word ‘often’ [Gk polla], probably in an attempt to harmonise Matthew with Luke.

DidacheIn fact, Luke appears to have a particular interest in this regular habit. In Jesus’ story of the Pharisee and the tax collector in Luke 18, we hear the Pharisee proclaim, ‘I fast twice a week…’ (Luke 18.12), and in fact we know on which days he fasted! An early Christian teaching document, the Didache (usually dated to the late first century, but lost until its rediscovery in the 19th) says this:

Chapter 8: But let not your fasts be with the hypocrites, for they fast on the second and fifth day of the week. Rather, fast on the fourth day and the Preparation (Friday). Do not pray like the hypocrites, but rather as the Lord commanded in his Gospel, like this:…

and then follows a version of the Lord’s prayer very similar to the one we find in Matthew (‘his Gospel’). (For more on this, see the post on Jesus’ poetic teaching.) The term ‘hypocrites’ most likely refers to Jews who do not follow Jesus (hence almost certainly dating the Didache to some time after the year 85) but who fast—guess what!—on two days a week, Mondays and Thursdays. And precisely in line with Jesus teaching in all three Synoptic gospels, the followers of Jesus are also expected to fast two days a week, albeit on different days. In one of Luke’s other references to this practice, Acts 13.2, again it appears to be a habitual practice of the community of believers. (There is evidence that this regular fasting went from after breakfast until a light evening meal, rather than being a 24-hour period without food.)

Further confirmation of this practice comes from a slightly unlikely source. In Rabbinic Judaism from the second century onwards, there is no evidence that fasting continued to be a habitual practice. Instead, patterns of fasting return to what we find in the Old Testament. The best historical explanation of this is the mirror of what we find in the Didache. Just as the early Jewish followers of Jesus began to define themselves over against mainstream Judaism, so Rabbinical Judaism then began to define itself against the growing Jesus movement. So a practice like regular fasting, which marked out Jesus-followers against their pagan context, would be a good thing to drop.

Finally, it’s worth reflecting on what this habit of fasting two days a week signified as a devotional practice. As Eliezer Diamond notes (Holy Men and Hunger Artists, p 130) the idea of regular fasting would have seemed odd to most in Graeco-Roman culture. The majority would have seen no need for it, whilst certain ascetic groups did practice fasting, but as a sign of detachment from the world. Intermittent fasting says something different.

‘Feast’ days celebrated a world made by God and all the good in it; alongside this, ‘fast’ days signified repentance, mourning and longing for deliverance—just the sort of practice you might adopt if you were awaiting the deliverance of a Messiah and the breaking in of the age to come. Intermittent fasting is just the sort of thing you might continue to practice if you wanted to continue to both affirm the world you lived in, but also to look for an age to come; it is the dietary expression of the ‘now and not yet’ of the kingdom of God (or, to use a theological term, the ‘partially realised eschatology’) we find in the New Testament. In fact, it is just the thing you would do if you were in the habit of praying ‘Your kingdom come, your will be done, on earth as it is in heaven’!

So the question worth asking is: why wouldn’t we do the same now?


(In a wonderful piece of synchronicity, Michael Mosley advocates, on health grounds, intermittent fasting on…Mondays and Thursdays!). (Originally published in 2013.)

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22 thoughts on “How often did Jesus and his followers fast?”

  1. I think the Didache is using the Christian count for the week, the preparation (paraskeve) being Saturday. The Talmud enjoins Tuesdays and Thursdays as fast days, which were replaced by Wednesdays and Fridays in the old Roman Missal (and orthodox imerologion, which adds Saturdays in Lent) if memory serves. Christians simply carried not the Jewish custom but reckoned fasts from Sundays instead of the Sabbath.

  2. I seem to recall that John Wesley and his companions fasted twice a week, Wednesdays and Fridays, till 3pm. So good evangelical precedent.

    • Yes that’s right. And if this is a theological pattern for us (we are in the ‘desert’ of this world where the Holy Spirit is forming us) then it is only in this world that we should fast…

      • Hi Ian, you had me until this comment. How are we in the desert and not the “Here and not yet Kingdom of God”?

        • Sorry; an allusion to Revelation’s theology of time, which is also picked up in the well known hymn Guide me Oh Thou Great Jehovah.

          In terms of OT typology, we have been set free from the slavery of sin in ‘Egypt’ but we have not yet enter the Promised Land of the New Jerusalem. So our life in the now and not yet of the kingdom corresponds to the desert wanderings of the Israelites. (Revelation makes this link by using the time period of 3.5 years, which is 1,260 days and 42 months to described this in-between time—corresponding to the 42 places that they camped in the desert listed in Numbers 33.)

      • Interestingly enough, the above article concludes with the recommendation of regularly holding down a fast Mondays & Thursdays – and it is not coincidence that Prophet Muhammed [Peace & blessings be upon him] used to fast these exact days (mondays&thursday) till his death…

  3. According to the gospel of Luke 4:1, it gives a reason why Jesus went in the wilderness. And the reason was He went to be tempted by the devil. Also Jesus going in the wilderness was not His intention but He was lead by the spirit. Why do most Christians believe that Jesus went in the wilderness to pray and fast?

  4. Jesus fasted more than once in the desert.

    He told his followers this kind only go out by fasting and praying. Therefore showing fasting was something he did in the regular and something they didn’t until then anyways.

  5. I could really use your help and opinions.

    I fast every year for Advent and Lent, by going on a vegan diet – something I learned from my Grandma.

    This year, I would like to fast on water, during Lent. 40 days, only on water. My question is how many times did Jesus or Mosses fast for 40 days, while not consuming any food?

    Is this something I should do once in my life, or every Lent go forward?

    Thank you for the article, I found it very informative!! I wish it was easier to find information on Christianity, on the internet.

  6. I’ve been thinking and praying a lot about fasting as I have joined some days in support of the Ramadan fast this month. What’s come clearly to me is that the point of fasting is to turn one’s thoughts to God, to pray, to overcome temptation, unkind thinking, criticism, selfishness, sorrow and all the other sins and ills of mortality. If one’s focus is simply on not eating or drinking, then the fast may prove difficult and/or fruitless. The true blessing is an uplifted spiritual consciousness, an understanding of and perception of good. This divine sustenance is much more fulfilling and satisfying than any food we could eat and probably what sustained Jesus in the desert. While I don’t think most of us are ready to attempt such a fast, we can at least lift our expectations of what it means to do so.

  7. Muslim and Catholic fasts are irrelevant and done in vain since they’re withstaining from the wrong meal altogether! Neither believe in salvation alone by Christ alone, in faith alone and the Word of God alone. They both take the scriptures and twist them beyond recognition and preach a different Gospel. I don’t say this to condemn them as they need proper guidance and to be called by the Spirit of God. I say this to admonish all the believers on this thread who just let them pass by as if part of the flock and refused to course correct or feed them along the way!


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