Get a holy subject and keep to it till you have drawn from it to feed your soul upon, and then you will do your life-work with less fatigue, because you will have more strength to spend upon it.

C. H. Spurgeon

I keep little scrap paper by my prayer bench and whenever I read a promise that can lure me away from my guilt and fear and greed I write it down. Then in dry spells I have a pile of promises to soak my soul in. The fight of faith is fought with the promises of God.

John Piper