2 Samuel 4:9-11

9But David answered Rechab and Baanah his brother, the sons of Rimmon the Beerothite, and said to them, “As the Lord lives, who has redeemed my life from all adversity,

10when someone told me, saying, ‘Look, Saul is dead,’ thinking to have brought good news, I arrested him and had him executed in Ziklag—the one who thought I would give him a reward for his news.

11How much more, when wicked men have killed a righteous person in his own house on his bed? Therefore, shall I not now require his blood at your hand and remove you from the earth?”