Adam Clarke's Commentary on the Bible - Revelation 17:10
And there are seven kings - Και βασιλεις ἑπτα εισιν· They are also seven kings. Before, it was said, they are seven mountains; here, they are also seven kings, which is a demonstration that kingdoms are not here meant by mountains: and this is a farther argument that the seven electorates are represented by seven mountains, for though the sovereigns of these states ranked with kings, they were not kings: that is to say, they were not absolute and sole lords of the territories they... read more
Adam Clarke's Commentary on the Bible - Revelation 17:9
Here is the mind which hath wisdom - It was said before, Revelation 13:18 , Here is wisdom. Let him that hath A Mind, or understanding, ( νουν ), count the number of the beast. Wisdom, therefore, here means a correct view of what is intended by the number 666; consequently the parallel passage, Here is The Mind which hath Wisdom, is a declaration that the number of the beast must first be understood, before the angel's interpretation of the vision concerning the whore and the beast can... read more