'Kings' in the Bible

“Thus we took the land at that time from the hand of the two kings of the Amorites who were beyond the Jordan, from the valley of Arnon to Mount Hermon

I commanded Joshua at that time, saying, ‘Your eyes have seen all that the Lord your God has done to these two kings; so the Lord shall do to all the kingdoms into which you are about to cross.

They took possession of his land and the land of Og king of Bashan, the two kings of the Amorites, who were across the Jordan to the east,

He will deliver their kings into your hand so that you will make their name perish from under heaven; no man will be able to stand before you until you have destroyed them.

The Lord will do to them just as He did to Sihon and Og, the kings of the Amorites, and to their land, when He destroyed them.