God's greatest interest is to glorify the wealth of His grace by making sinners happy in Him.
John PiperI don’t know how people pray who don’t believe in the sovereignty of God to do the impossible. Because all the things I want to happen are impossible. If they’re possible I’ll do them.
John PiperSpiritual leadership is knowing where God wants people to be and taking the initiative to get them there by God's means in reliance on God's power.
John PiperIf you can't see the sun you will be impressed with a street light. If you've never felt thunder and lightning you'll be impressed with fireworks. And if you turn your back on the greatness and majesty of God you'll fall in love with a world of shadows and short-lived pleasures.
John PiperWhat is sin? It is the glory of God not honored. The holiness of God not reverenced. The greatness of God not admired. The power of God not praised. The truth of God not sought. The wisdom of God not esteemed. The beauty of God not treasured. The goodness of God not savored. The faithfulness of God not trusted. The commandments of God not obeyed. The justice of God not respected. The wrath of God not feared. The grace of God not cherished. The presence of God not prized. The person of God not loved. That is sin.
John Piper