Judges 20:44 in the King James Version
And there fell of Benjamin eighteen thousand men; all these were men of valour.
Context
43 They surrounded the Benjamites, chased them, and trod them down at their resting place, as far as near Gibeah toward the sunrise.
44 Eighteen thousand men of Benjamin fell; all these were men of valor.
45 They turned and fled toward the wilderness to the rock of Rimmon. They gleaned five thousand men of them in the highways, and followed hard after them to Gidom, and struck two thousand men of them.