David wonders in Ps51 why God might be so good to him. He asks for mercy first, then more than mercy. He asks for a fully restored, even thriving relationship. Why?
So he can be educational
So he can be evangelical
So he can be worshipful
So he can intercede for the house of God.
Don't let this great sin go to waste.
https://youtu.be/IRv3OSeGA-M