God hand picked David to be king over Israel. He was the top leader over all of Israel (1 Samuel 1).
He used that position to commit murder in the first degree. He had Bath-sheba’s husband, Uriah, killed so he could have Bath-sheba all to himself. That is outlined in 2 Samuel chapter 11. A law school could use this chapter as an example of murder in the first degree. Conspiracy also and probably a few other niceties.
God wasn’t happy about David’s behaviour (2 Sam 11:27) so he had a talk with him. He told David that things wouldn’t be going very well for him and Israel from now on. But David immediately repented and so God completely forgave him (2 Sam 12). In fact, David ended up in the Hebrew’s chapter 11 “believers hall of fame” (Heb 11:32).
So the top leader of all Israel murders an innocent man. David repented. God forgave him.
The question: what would present day Christendom do to a man like David?