Joshua 11:13
mounds <08510> [in their. Heb. on their heap.]
The Vulgate, Syriac, Onkelos and Waterland render {Æ’l tillom,} "on their hills." As the cities of the plain might be easily attacked and carried, Joshua destroyed them; but as those on mountains, hills, or other eminences, might be retained by him with little trouble, prudence would dictate their preservation.