'Battering rams' in the Bible

and lay siege against it, and build forts against it, and cast up a mound against it; set camps also against it, and plant battering rams against it round about.

In his right hand was the divination for Jerusalem, to set battering rams, to open the mouth in the slaughter, to lift up the voice with shouting, to set battering rams against the gates, to cast up mounds, to build forts.