2 Samuel 20:11-14
11-14One of Joab's soldiers took up his post over the body and called out, "Everyone who sides with Joab and supports David, follow Joab!" Amasa was lying in a pool of blood in the middle of the road; the man realized that the whole army was going to stop and take a look, so he pulled Amasa's corpse off the road into the field and threw a blanket over him so it wouldn't collect spectators. As soon as he'd gotten him off the road, the traffic flowed normally, following Joab in the chase after Sheba son of Bicri. Sheba passed through all the tribes of Israel as far as Abel Beth Maacah; all the Bicrites clustered and followed him into the city.
15Joab's army arrived and laid siege to Sheba in Abel Beth Maacah. They built a siege-ramp up against the city's fortification. The plan was to knock down the wall.