When You Fast

Two times in the Sermon on the Mount Jesus says, "When you fast . . ." and proceeds to give instruction regarding fasting. What is interesting is that Jesus does not say "If you fast" as if fasting was an option. (Matthew 6:16-18) The text assumes that the disciples would fast in the same manner that was expected that they would give to the needy (v. 2-4) and they would pray. (v. 5-8)

Yet today in the Church, unlike prayer and charitable giving, fasting is not a familiar element of the Christian lifestyle. This is strange because Jesus said that his disciples would fast, saying: "But the time will come when the bridegroom will be taken from them; in those days they will fast." - Luke 5:35

As Christians we are in a constant spiritual war "against the powers of the dark world and against the spiritual forces of evil in the heavenly realms." (Ephesians 4:12) We recognize the absolute necessity the role that prayer plays in aiding us in this battle because we are told to, "pray in the Spirit on all occassions with all kinds of prayers and requests." (v. 18) Fasting can further equip us in times of great trial or particular challenge.

A interesting variant reading of Mark 9:29 says that "prayer and fasting" were required to expel the toughest of the demons. It is certainly true that supplementing our personal prayers with a period of fasting can be highly effective in our stand against the evil forces around us. By example, when Jesus was preparing himself for his ministry and readying himself to face the tempations of the Satan, the leader of the demons, "he fasted forty days and forty nights". (Matthew 4:1,2)

The Acts of the Apostles records that the apostolic Church fasted as a course of religious observance, in preparing for ministerial assignment, and seeking God's direction. Acts 13:2,3 reads, "While they were worshiping the Lord and fasting, the Holy Spirit said, "Set apart for me Baranabs and Saul for the work to which I have called them." So after they had fasted and prayed, they placed their hands on them and sent them off."

(Likewise the writings of Clement from Alexanderia & Tertullian document that fasting, particularly on Wednesday and Friday, was routinely observed by the Christian Congregation in the 2nd century.)