The greatest risk we face as a church in these days is not the loss of an organ, or the loss of money, or the loss of staff, or the loss of elders, or the loss of members, or the loss of reputation, but the loss of heaven. Because it is possible to become so hardened in a path of “unforgiveness” that you prove that God is not in you and that you do not have this forgiveness and are lost… If we hold on to an unforgiving spirit, if we cherish it and it becomes our way, God will not forgive us for our sins.
—John Piper, “As We Forgive Our Debtors”, March 20, 1994 (emphasis mine)