Ver. 22-25. Then said Joshua, Open the mouth of the cave— In full view of all his troops, now returned to the camp near Makkedah, and before his assaulting that place, Joshua caused the five kings to be brought forth out of the cavern, which had served as their prison all the while the action of that miraculous day continued. Next he commands his principal officers to put their feet upon the necks of these kings: a rough and contemptuous treatment, but which God had, doubtless, enjoined him to use, in order to intimidate the Canaanites, by thus punishing them with the utmost rigour for their aggravated iniquity; to encourage the Israelites, and to accomplish gloriously what Moses had declared to them respecting their future prosperity. See Deuteronomy 33:29.
Joshua 10:22-25
22 Then said Joshua, Open the mouth of the cave, and bring out those five kings unto me out of the cave.
23 And they did so, and brought forth those five kings unto him out of the cave, the king of Jerusalem, the king of Hebron, the king of Jarmuth, the king of Lachish, and the king of Eglon.
24 And it came to pass, when they brought out those kings unto Joshua, that Joshua called for all the men of Israel, and said unto the captains of the men of war which went with him, Come near, put your feet upon the necks of these kings. And they came near, and put their feet upon the necks of them.
25 And Joshua said unto them, Fear not, nor be dismayed, be strong and of good courage: for thus shall the LORD do to all your enemies against whom ye fight.