What does 2 Samuel 12:7 mean?

Nathan looked at David and said, 'You’re the man I’m talking about. This is what the Lord, Israel’s God, says: I made you king over Israel. I saved you from Saul’s hand.' 2 Samuel 12:7 - Modern Text Bible

(Nathan reveals to David that the story he just told was about David himself. God reminds David of all the good things He’s done for him, especially making him king and protecting him from Saul.)