And Jesus answering said to him, “Simon, I have something to say to you.” And he answered, “Say it, Teacher.” “A certain moneylender had two debtors. One owed five hundred denarii, and the other fifty. When they could not pay, he cancelled the debt of both. Now which of them will love him more?” Simon answered, “The one, I suppose, for whom he cancelled the larger debt.” And he said to him, “You have judged rightly.”
This passage speaks of the fact that Jesus saves us from being judgmental and comparing ourselves to others.
This Pharisee was comparing himself to the sinful woman, and not only that, he was judging the Judge for how close he was letting the woman get to him; he was internally criticising the King's rule of mercy.
And what's fascinating too is that he wasn't publicly saying these things about the woman, he was just thinking it in his head; in his thoughts. But Jesus heard him because he knows our thoughts.
He saves us from our self righteousness and our licentiousness. He saves us through and through — as you say, to make us whole. Jesus calls out his thoughts He wants to sanctify my thoughts because that’s where my behavior comes from.