Which perished at En-dor - Endor is not particularly mentioned in the history of the transaction in the book of Judges, but it is known that Endor was in the vicinity of Mount Tabor, and there is no improbability in the tradition which has fixed the site of the battle at or near Endor. The word or name “En-dor” means properly fount of the dwelling (or, habitation), and was probably given at first to a spring or fountain near to which some distinguished or well-known person dwelt. It is mentioned in Joshua 17:11; 1 Samuel 28:7.
They became as dung for the earth - The land was enriched or made fertile by their flesh, their blood, and their bones, as the field of Waterloo was by that of the slain, or as fields of battle commonly are.