Adjust your doctrine - or just minimize doctrine - to attract the world, and in the very process of attracting them, lose the radical truth that alone can set them free.
John PiperWhy don't people ask us about our hope? The answer is probably that we look as if we hope in the same things they do. Our lives don't look like they are on the Calvary road, stripped down for sacrificial love, serving others with the sweet assurance that we don't need to be rewarded in this life.
John PiperIf you alter or obscure the Biblical portrait of God in order to attract converts, you don't get converts to God, you get converts to an illusion. This is not evangelism, but deception.
John PiperGod seldom calls us for an easier life, but always calls us to know more of him and drink more deeply of His sustaining grace.
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