“Desires for other things”—there’s the enemy. And the only weapon that will triumph is a deeper hunger for God. The weakness of our hunger for God is not because he is unsavory, but because we keep ourselves stuffed with “other things.” Perhaps, then, the denial of our stomach’s appetite for food might express, or even increase, our soul’s appetite for God.
What is at stake here is not just the good of our souls, but also the glory of God. God is most glorified in us when we are most satisfied in him. The fight of faith is a fight to feast on all that God is for us in Christ. What we hunger for most, we worship. (A Hunger for God, page. 10)
Christian fasting is a test to see what desires control us. What are our bottom-line passions? (p. 19)
Fasting proves the presence [of a hunger for God], and fans the flame, of that hunger. It is an intensifier of spiritual desire. It is a faithful enemy of fatal bondage to innocent things. It is the physical exclamation point at the end of the sentence: “This much, O God, I long for you and for the manifestation of your glory in the world!”
One might think that those who feast most often on communion with God are least hungry. They turn often from the innocent pleasures of the world to linger more directly in the presence of God through the revelation of his Word. And there they eat the Bread of Heaven and drink the Living Water by meditation and faith. But, paradoxically, it is not so that they are the least hungry saints. The opposite is the case. The strongest, most mature Christians I have ever met are the hungriest for God. It might seem that those who eat most would be least hungry. But that’s not the way it works with an inexhaustible fountain, and an infinite feast, and a glorious Lord. (p 22 – 23)