John Gill Commentary Joshua 10:22

"Then said Joshua, Open the mouth of the cave, and bring forth those five kings unto me out of the cave." — Joshua 10:22 (ASV)

Then said Joshua, open the mouth of the cave
That is, roll away the great stones that were laid at the mouth of it:

and bring out those five kings unto me out of the cave ;
to receive their sentence in a public manner, for the encouragement of his troops and the terror of the Canaanites, particularly Makkedah, now besieged by him.