'Battering rams' in the Bible

and hast placed against it a siege, and builded against it a fortification, and poured out against it a mount, and placed against it camps, yea, set thou against it battering-rams round about.

At his right hath been the divination -- Jerusalem, To place battering-rams, To open the mouth with slaughter, To lift up a voice with shouting, To place battering-rams against the gates, To pour out a mount, to build a fortification.

He will direct the blows of his battering rams against your walls and tear down your towers with his weapons.