“My knees are weak from fasting and my body is thin and gone.”
In this passage, David is explaining how he was feeling physically, however he goes on to say how strong his spirit had become because of it. Fasting is not easy and does take a physical toll on your body. What we tend to underestimate is how much it can help your spirit grow. It seems like most people fast when there is a problem or a reason when we want to hear from God. That seems to be the only time we can convince ourselves to do it. I think that fasting builds up your faith and really helps you when you are both in crisis or when you need to be prepared for crisis. Fasting can prepare you to share you faith with others and show how seriously you take God’s word.