C. F. Keil and Franz Delitzsch on 2 Chronicles 20:24

2Ch 20:24

Now, when Judah came to the height in the wilderness (מצפּה, specula, watch-tower, here a height in the wilderness of Tekoa, whence one might look out over the wilderness Jeruel, 2Ch 20:16), and turned, or was about to turn, against the multitude of the enemy (ההמון referring back to 2Ch 20:12), behold, they saw “corpses lying upon the earth, and none had escaped,” i.e., they saw corpses in such multitude lying there, that to all appearance none had escaped.