We modern people think of miracles as the suspension of the natural order, but Jesus meant them to be the restoration of the natural order. The Bible tells us that God did not originally make the world to have disease, hunger, and death in it. Jesus has come to redeem where it is wrong and heal the world where it is broken. His miracles are not just proofs that he has power but also wonderful foretastes of what he is going to do with that power. Jesus' miracles are not just a challenge to our minds, but a promise to our hearts, that the world we all want is coming.
Timothy KellerRepentance 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