David told the messenger, “Say this to Joab: ‘Don’t let this upset you; the sword devours one as well as another. Press the attack against the city and destroy it.’ Say this to encourage Joab.”
“But we have overthrown them; Heshbon’s dominion has been destroyed all the way to Dibon. We have demolished them as far as Nophah, which extends to Medeba.”
David then asked Ahimelek the Hittite and Abishai son of Zeruiah, Joab’s brother, “Who will go down into the camp with me to Saul?” “I’ll go with you,” said Abishai.