'Kingdoms' in the Bible

Hezekiah prayed before the Lord and said, “O Lord, the God of Israel, who is enthroned above the cherubim [of the ark in the temple], You are the God, You alone, of all the kingdoms of the earth. You have made the heavens and the earth.

Now, O Lord our God, please, save us from his hand so that all the kingdoms of the earth may know [without any doubt] that You alone, O Lord, are God.”