Fasting and the Defeat of Satan

“The devil said to Jesus: ‘If you are the son of God, command that these stones become bread.’ (Luke 4:3)

Here we learn that there are three principal weapons that the devil likes to carry in order to wound our souls. They are gluttony, arrogance, and ambition. He begins with the weapon with which he has already been victorious. We likewise should begin to be victorious in Christ in the very same area in which we had been defeated in Adam: we should be wary of gluttony. The devious trap is set for us when the table is laid for a royal banquet; it is bound to weaken our defenses.

See what weapons Christ uses to defeat the power of the devil. He does not use the almighty power he had as God: what help would that be to us? In his humanity he summons the help common to all – overlooking bodily hunger and seeking the word of God for nourishment. Whoever follows the Word is no longer attached to earthly bread, because he receives the bread of heaven and knows the divine is better than the human, the spiritual is better than the physical. Therefore, because such a person desires the true life, he looks for that which fortifies the heart by means of its invisible substance.” (St. Ambrose of Milan in Drinking from the Hidden Fountain: A Patristic Breviary, pp 139-140)