Let's take them one at a time. Forgiveness is not flippancy toward sin. God forgives what he hates. And I got the deep impression he really meant it. God never sweeps one little lie under the rug.
Someone always pays.
So when kindness calls us to forgive a wrong that has been done against us, we are sustained by the truth of God's holiness. And in neither case should we fear to forgive as though there were no settling of accounts in the universe. It cost God his Son. And it will cost us the sweet taste of revenge and the pleasure of savoring a grudge and the pride of superiority. There is no sham in it.