mercy based repentance

“Repentance out of mere fear is really sorrow for the consequences of sin, sorrow over the danger of sin — it bends the will away from sin, but the heart still clings. But repentance out of conviction over mercy is really sorrow over sin, sorrow over the grievousness of sin — it melts the heart away from sin. It makes the sin itself disgusting to us, so it loses its attractive power over us. We say, ‘this disgusting thing is an affront to the one who died for me. I’m continuing to stab him with it!’” - Timothy Keller, Church Planter Manual