The bigger and heavier the sins are...

And the more difficult sin seems to you, the more willingly God will forgive it and come into the soul to drive out that sin. After all, everyone is most eager to remove what they find most unpleasant. And the greater and heavier the sins, the more gladly and quickly God forgives them, for they are against His will. And when divine contrition rises to God, all sins will disappear into the abyss of God before I can blink, and dissolve into nothing so perfectly, as if they had never happened – only when there was perfect contrition.

(Master Eckhart OP /1260–1327/, Teaching 13)