When Saul's son heard that Abner was dead in Hebron, his hands were feeble, and all the Israelites were troubled. 2 Samuel 4.1After Abner died, Rechab and Baanah became Ishbosheth’s captains.
Saul's son had two men that were captains of bands: the name of the one was Baanah, and the name of the other Rechab. 4.2One day Rechab and Baanah went to visit Ishbosheth, who was taking a nap at the time.
Rechab and Baanah, went, and came about the heat of the day to the house of Ishbosheth, who lay on a bed at noon. 4.5They pretended to be picking up some wheat, but they really stopped by to kill him. And they “smote him under the fifth rib” (the preferred place to smite someone in the Bible).
They came thither into the midst of the house, as though they would have fetched wheat; and they smote him under the fifth rib. 4.6After smiting him, they cut off his head and took it to David.
When they came into the house, he lay on his bed in his bedchamber, and they smote him, and slew him, and beheaded him, and took his head. And they brought the head of Ishbosheth unto David. 4.7-8They figured David would be pleased, since he and Ishbosheth were enemies. But they were wrong.
David told them about how he killed the Amalekite who killed Saul, even though Saul asked him to since he was mortally wounded. Now he was going to kill them for killing Saul’s son, Ishbosheth.
When one told me, saying, Behold, Saul is dead, thinking to have brought good tidings, I took hold of him, and slew him … How much more, when wicked men have slain a righteous person in his own house upon his bed? 4.10-11So David had his “young men” kill Rechab and Baanah, cut off their hands and feet, and hang their bodies up over the pool in Hebron.
David commanded his young men, and they slew them, and cut off their hands and their feet, and hanged them up over the pool in Hebron. 4.12Mutilated bodies hanging over pools make such nice decorations!
(We know that God approved of this killing because God approved of all of David’s killings, with the single exception of the matter of Uriah. See 1 Kings 15.5.)