Sleep is a daily reminder from God that we are not God. Once a day God sends us to bed like patients with a sickness. The sickness is a chronic tendency to think we are in control and that our work is indispensable. To cure us of this disease God turns us into helpless sacks of sand once a day.
John PiperWithout the renewed mind, we will distort the Scriptures to avoid their radical commands for self-denial, and love, and purity, and supreme satisfaction in Christ alone.
John Piper