And he shall restore fourfold for the lamb, because he did this thing and because he had no pity."
2 Samuel 12:6
Surrounding context
12:5 So David's anger was greatly aroused against the man, and he said to Nathan, "As the LORD lives, the man who has done this shall surely die!
12:6 And he shall restore fourfold for the lamb, because he did this thing and because he had no pity."
12:7 Then Nathan said to David, "You are the man! Thus says the LORD God of Israel: "I anointed you king over Israel, and I delivered you from the hand of Saul.