1 Samuel 24-25
Ch.24 : David spares Saul's life. As Saul continues to pursue David to kill him he goes into a cave where David and his men are hiding. David could do whatever he wants with Saul and he cuts off part of his robe and can't do anything more. Once out of the cave David reveals himself and the mercy he has shown Saul. Saul is all full of repent and "May the Lord reward you..." In the end, David gives an oath to Saul that he won't kill Saul or his descendants. How nice of David.
I think what stood out to me was how David was above reproach with Saul.
reproach: to find fault with (a person, group, etc.); blame; censure
He does not hurt Saul or even call him out for trying to kill him. He gives it up to the Lord. He trusts. "May the Lord judge between you and me. And may the Lord avenge the wrongs you have done to me, but my hand will not touch you" verse 12.
Ch.25 : This is the story of how David gets his wife Abigail. She is "intelligent and beautiful" and pretty much wicked smart for going behind her drunk and foolish husbands back, "acted quickly" to provide food for David's army as they came to kill all of Nabal's whole household. She makes it right and David leaves them alone. Though in the end, the Lord is just and "about ten days later, the Lord struck Nabal and he died." Then David gets a new wife. How lovely.