" Don't waste your life on experiments. There are proven paths. They are marked out in the Word of God. They are understandable. They are precious. They are hard. And they are joyful. Search the Scriptures for these paths. When you find them, step on them with humble faith and courage. Set your face like flint toward the cross and the empty tomb-- your cross and your empty tomb. Then, for the joy set before you, may a lifetime of sacrifices in the paths of love seem to you as a light and momentary affliction. "

― John Piper , The Supremacy of Christ in a Postmodern World