" The acid test of biblical God-centeredness-and faithfulness to the gospel-is this: Do you feel more loved because God makes much of you, or because, at the cost of his Son, he enables you to enjoy making much of him forever? Does your happiness hang on seeing the cross of Christ as a witness to your worth, or as a way to enjoy God's worth forever? Is God's glory in Christ the foundation of your gladness? "

― John Piper , God Is the Gospel: Meditations on God's Love as the Gift of Himself