The reign of God, as he taught it, overthrows all competing principalities and powers, all philosophies and systems. It does this for a disturbing, embarrassing, and shocking reason: it rests on grace.

So Jesus told outrageous stories about grace, and he acted out minidramas of grace — miracles of healing, in which the blind were given sight, the deaf were given hearing, the lame were given mobility, the dead were given life. Were given: they did not earn these things; they received them as gifts.

Donald McCullough, If Grace Is So Amazing, Why Don't We Like It?