2 Samuel 4:6-10

And they came to the interior of the house as if to get wheat, and they struck him in the belly; and Rechab and his brother Baanah escaped.

Now when they had come into the house, as he was lying on his bed in his bedroom, they struck him and killed him, and they beheaded him. And they took his head and traveled by way of the Arabah all night.

Then they brought the head of Ish-bosheth to David at Hebron, and said to the king, “Behold, the head of Ish-bosheth the son of Saul, your enemy, who sought your life; so the Lord has given my lord the king vengeance this day on Saul and his descendants.”

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

when the one who informed me, saying, ‘Behold, Saul is dead,’ also viewed himself as the bearer of good news, I seized him and killed him in Ziklag, which was the reward I gave him for his news.