I. Introduction a. There are many things that we read in the Bible that we view as outdated or optional—one of these things is fasting b. When we think of fasting, we might think that it was an Old Testament thing, or maybe that it’s something that Catholics do during Lent or that Muslims do during Ramadan c. Fasting is, however, a very powerful tool in our relationship with God d. Arthur Wallis: “Fasting is important, more important perhaps, than many of us have supposed…when exercised with a pure heart and a right motive, fasting may provide us with a key to unlock doors where other keys have failed; a window opening up new horizons in the unseen world; a spiritual weapon of God’s provision, mighty, to the pulling down of strongholds.” e. Tertullian: “Fasting po...