And they came and besieged him in Abel of Beth-maachah, and they cast up a mound against the city, and it stood against the rampart: and all the people that were with Joab battered the wall, to throw it down.
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George Leo Haydock
AD 1849
Works. Hebrew, a bank, or terrace against the city, and it stood in the trench; (Haydock) so that the town ditch was filled up, (Grotius) or terraces were raised, from which archers assailed the besieged. Joab made a ditch to defend his men from foreign assailants; and he had already taken the outward wall, so that the town could not hold out for any length of time.
The walls. St. Jerome thinks with battering rams: but they were not yet invented. (Calmet)
They undermined the walls, while some attempted to pull them down with hooks and ropes, chap. xvii. 13. (Haydock)