John 1:12 talks about people receiving the Lord and being reborn with pure hearts and living as angels. This verse shows where such acceptance and life must come from – first by showing where they do not come from.

"Blood" here means a desire to deny and resist what the Lord teaches, in the Bible and in earlier forms of His Word. "The will of the flesh" means a craving for selfishness and evil. "The will of man" means the false reasoning that erupts from selfishness and justifies it. If we allow our eternal selves to be born of those things – denying the Lord’s leadership, serving ourselves and justifying it in our own minds – we will end up in hell. But if our eternal selves are born "of God," under His leadership and serving His will, then we will be the sons of God described in the previous verse, living in peace and joy in heaven.

(Referencat: Arcana Coelestia 1608 [2], 2531 [4], 8409 [3], 9241, 9454; Teachings about the Lord 18 [5]; The Apocalypse Explained 151 [5], 745 [4])

820. 19:11 Then I saw heaven opened, and behold, a white horse. This symbolizes the spiritual sense of the Word revealed by the Lord and the deeper meaning of the Word thereby disclosed, which is the coming of the Lord.

Seeing heaven opened symbolizes a revelation by the Lord and a disclosure then, which we will take up below. A horse symbolizes an understanding of the Word, and a white horse a deeper understanding (no. 298). And because this is the symbolic meaning of a white horse, and a deeper understanding of the Word is an understanding of the spiritual sense, therefore that sense is here symbolized by the white horse.

This is the coming of the Lord, because that sense makes it clearly apparent that the Lord embodies the Word, that the Word deals with Him alone, that He is God of heaven and earth, and that the New Church originates from Him alone.

The Lord told His disciples that they would see the Son of Man coming on the clouds of heaven with glory and power (Matthew 17:5; 24:30; 26:64; Mark 14:61-62; Revelation 1:7; Acts of the Apostles 1:9, 11). And the Lord said this also when He spoke with His disciples about the culmination of the age, which is the final period of the church when a judgment takes place.

Everyone who does not think beyond the literal sense believes that when the Last Judgment arrives, the Lord will appear in clouds of the sky, accompanied by angels and the blowing of trumpets. But this is not the meaning. Rather it means that the Lord will appear in the Word, as can be seen from the exposition above in nos. 24 and 642, and He appears clearly in the Word's spiritual sense. He appears not only as being an embodiment of the Word, that is, of Divine truth itself, or as being inmostly present in the Word and in everything springing from it, but also as being a single God, having the Trinity in Him, thus as being the only God of heaven and earth. Moreover, it appears also that He came into the world to glorify His humanity, that is, to make it Divine.

[2] The humanity that the Lord glorified, that is, the humanity that He made Divine, was the natural humanity, which He could not glorify or make Divine except by taking on a humanity in a virgin in the natural world, to which He then united His Divinity which He had from eternity. This union was achieved by temptations suffered by the humanity He had taken on, the last of which was His suffering of the cross and at the same time His fulfilling all of the Word, not only by His fulfilling all of the Word in its natural sense, but also by His fulfilling all of the Word in its spiritual sense, and also in its celestial sense, which, as we said before, deals with Him alone.

But on this subject see what we disclosed in The Doctrine of the New Jerusalem Regarding the Lord, and in The Doctrine of the New Jerusalem Regarding the Sacred Scripture.

Now because the Lord embodies the Word, and the Word became flesh (John 1:1-2, 14), and the Word became flesh in order that He might fulfill it, it is apparent that the Lord's appearing on the clouds of heaven means His coming in the Word. That the clouds of heaven symbolize the Word in its literal sense may be seen in nos. 24 and 642 above.

It is apparent that it is the Lord's appearing in the Word that is meant, because the white horse symbolizes a deeper understanding of the Word, and we are told that the name of Him who sat on the horse is "The Word of God," and that His name is "King of kings and Lord of lords" (verses 13, 16).

[3] It is apparent from this now that John's seeing heaven opened, and behold, a white horse, symbolizes the spiritual sense of the Word revealed by the Lord and the deeper meaning of the Word thereby disclosed, which is the coming of the Lord.

That the Word's spiritual sense has at this day been revealed, which no one in the Christian world has previously known anything about, may be see in Arcana Coelestia (The Secrets of Heaven), in which we expounded two of the books of Moses - Genesis and Exodus - in accordance with that sense. It may be seen also in The Doctrine of the New Jerusalem Regarding the Sacred Scripture, nos. 5-26; in the short treatise, The White Horse, from beginning to end, and from the numbers collected there from Arcana Coelestia regarding the sacred scripture; and furthermore in this exposition of the book of Revelation, in which not even one little verse can be understood apart from its spiritual meaning.