749. 17:17 "For God has put it into their hearts to carry out His purpose, and to be of one mind and give their kingdom to the beast." This symbolizes a judgment among Protestants from the Lord that they should utterly repudiate and renounce the Roman Catholic religion and expunge and eradicate it in themselves, and a unanimous judgment that they should acknowledge the Word and found the church on it.

Since the harlot symbolizes the Roman Catholic religion, and the ten horns that will hate the harlot symbolize Protestants, as in nos. 746-748 above, it is apparent that carrying out God's purpose means symbolically that they judged and concluded that they should utterly repudiated and renounce the Roman Catholic religion and expunge and eradicate it in themselves, as in no. 748 above. And it is apparent as well that to be of one mind and give their kingdom to the beast means, symbolically, to unanimously judge and conclude that they should acknowledge the Word and found the church on it. The beast symbolizes the Word, as it has everywhere before (see no. 723), and their kingdom symbolizes the church and government over it, about which we will say more here below. That God put it into their hearts means symbolically that their judgments came from the Lord.

[2] That a kingdom symbolizes the church can be seen from the following passages:

The children of the kingdom will be cast out into outer darkness. (Matthew 8:12)

...the good seeds are the sons of the kingdom... (Matthew 13:38)

Someone who hears the Word of the kingdom, and does not heed it... (Matthew 13:19)

...the kingdom of God will be taken from you and given to a nation bearing the fruits of it. (Matthew 21:43)

No one, having put his hand to the plow, and looking back, is fit for the kingdom of God. (Luke 9:62)

Your kingdom come, Your will be done, on earth as it is in heaven. (Matthew 6:10)

Jesus, John the Baptist, and the disciples preached that the kingdom of God was at hand (Matthew 3:2; 4:17; 10:7, Luke 10:11; 16:16), and they preached also the gospel of the kingdom (Matthew 4:23; 9:35; 24:14, Luke 8:1).

If I cast out demons by the finger of God, surely the kingdom of God has come to you. (Luke 11:20)

And so on in many other passages where the kingdom of God is mentioned.

So, too, in the following:

...if you will... obey My voice and keep My covenant... you shall be to Me a kingdom of priests... (Exodus 19:5-6)

You, O tower of the flock, the ascent of the daughter of Zion, to you shall return... the former kingdom..., the kingdom of the daughter of Jerusalem. (Micah 4:8)

The saints... shall (afterward) receive the kingdom, and establish the kingdom..., even forever... (Daniel 7:18, cf. 7:22)

The kingdom and dominion, and the majesty of the kingdoms under all the heavens, shall be given to the people of the saints...(whose) kingdom is an everlasting kingdom, and all dominions shall worship and obey Him. (Daniel 7:27)

To (the Son of Man) was given... a kingdom (which shall not be destroyed), and all peoples, nations, and languages shall worship Him. (Daniel 7:14)

And so on elsewhere.

A kingdom symbolizes the church because the Lord's kingdom exists in heaven and on earth, and His kingdom on earth is the church. That, too, is why the Lord is called King of kings.