...we should all fortify ourselves against the dark hours of depression by cultivating a deep distrust of the certainties of despair. Despair is relentless in the certainties of its pessimism. But we have seen again and again, from our own experience and others', that absolute statements of hopelessness that we make in the dark are notoriously unreliable. Our dark certainties are not sureties.
John PiperThis is God's universal purpose for all Christian suffering: more contentment in God and less satisfaction in the world.
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 PiperSin is what you do when your heart is not satisfied with God. No one sins out of duty. We sin because it holds out some promise of happiness.
John Piper