Here is the quote many asked for from Peter’s sermon:
‘David’s sin, enormous as it was, was wildly outdone by God’s grace. David’s sin cannot, must not, be minimized, but its minuscule compared to God’s salvation from it. It’s always a mistake to concentrate attention on our sins; it’s God’s work on our sins that’s the main event.
Our sins aren’t that interesting; it’s God’s work that’s interesting. There’s nothing glamorous about sin, and it’s the devil’s work to make it look otherwise. Sin is diminishing, dehumanizing, and soon dull. After it’s been recognized and confessed, the less said about it the better.
Psalm 51 does it right: there are only four different words used to name the sin, so that it’s out in the open where it can be faced. These four sin-words are sufficient to adequately map the entire country of sin. But the central action is carried by nineteen different verbs used to invoke or declare God’s action of forgiveness and restoration. We have a finite number of ways to sin; God has an infinite number of ways to forgive.
After observing the human condition for a few years, we find in regard to sin we are mostly watching reruns. After a while we find that people pretty much do the same old thing generation after generation. Sinning doesn’t take much imagination.
But forgiveness and salvation? That’s a different story: every time it happens, it’s fresh, original, catching us by surprise. Sin isn’t creative work, and the more we’re around it, the duller it seems. Salvation, in contrast, is “ new every morning” ( Lamentations 3 v 23).’
Eugene Peterson from his book of reflections on the life of David- ‘Leap Over a Wall’