Charles Ellicott Commentary Judges 3:29

"And they smote of Moab at that time about ten thousand men, every lusty man, and every man of valor; and there escaped not a man." — Judges 3:29 (ASV)

At that time. —Apparently in the first surprise of the Moabite forces and garrisons.

All lusty. —Literally, every fat man and every soldier of strength, the word being the same as that used in Judges 3:17 to describe the fatness of Eglon. The choice of the word seems to be dictated by a certain grim sense of humour. “The narrative ends, as it had begun, with its half-humorous allusion to the well-fed carcasses of those who, corpulent like their chief, lay dead along the shore of the river.” (Stanley.)