Revelation 17:12

(26) And the ten horns which thou sawest are (27) ten kings, which have received no kingdom as yet; but receive power as kings (28) one hour with the beast.

(26) The third place of this description, as I said in See Revelation 17:8 is a prophetical prediction of things to come, which the beast should do, as in the words following John does not obscurely signify, saying, "which have not yet received the kingdom, etc". For there is an antithesis or opposition between these kings, and those that went before. First the persons are described in this verse, then their deeds, in the two verses following.

(27) That is, arising with their kingdoms out of that Roman beast: at such time as that political empire began to fall by the plotting of the popes.

(28) Namely, with that second beast, whom we called before a false prophet, who ascending out of the earth, got to himself all the authority and power of the first beast, and exercised the same before his face, as was said in (Revelation 14:11). For when the political empire of the west began to bow downwards, there arose those ten kings, and the second beast took the opportunity offered to usurp for himself all the power of the former beast. These kings long ago, many have numbered and described to be ten, and a great part of the events plainly testifies the same in this our age.