[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 KellerGod's grace and forgiveness, while free to the recipient, are always costly for the giver. From the earliest parts of the Bible, it was understood that God could not forgive without sacrifice. No one who is seriously wronged can โjust forgiveโ the perpetrator.
Timothy KellerThe issue on which everything hangs is not whether you like His teaching but if He โชrose from the dead.
Timothy Keller