[T]he main problem in life is sin, and the only solution is God and his grace. The alternative to this view is to identify something besides sin as the main problem with the world and something besides God as the main remedy. That demonizes something that is not completely bad, and makes an idol out of something that cannot be the ultimate good.
Timothy KellerFear-based repentance makes us hate ourselves. Joy-based repentance makes us hate the sin.
Timothy KellerJesus's teaching consistently attracted the irreligious while offending the Bible-believing , religious people of his day.
Timothy KellerChristianity teaches that, contra fatalism, suffering is overwhelming; contra Buddhism, suffering is real; contra karma, suffering is often unfair; but contra secularism, suffering is meaningful. There is a purpose to it, and if faced rightly, it can drive us like a nail deep into the love of God and into more stability and spiritual power than you can imagine.
Timothy Keller