2 Samuel 4:5-8

One day Baanah and Recab, the two sons of Rimmon, headed out for the house of Ish-Bosheth. They arrived at the hottest time of the day, just as he was taking his afternoon nap. They entered the house on a ruse, pretending official business. The maid guarding the bedroom had fallen asleep, so Recab and Baanah slipped by her and entered the room where Ish-Bosheth was asleep on his bed. They killed him and then cut off his head, carrying it off as a trophy. They traveled all night long, taking the route through the Arabah Valley. They presented the head of Ish-Bosheth to David at Hebron, telling the king, “Here’s the head of Ish-Bosheth, Saul’s son, your enemy. He was out to kill you, but GOD has given vengeance to my master, the king—vengeance this very day on Saul and his children!”