'The Lord's throne' signifies, in general, the whole heaven, and specifically, the spiritual heaven, and by extension, divine truth proceeding, and so, everything of heaven and the church.

In Genesis 41:40, this signifies things that are natural. (Arcana Coelestia 5313)

In Exodus 11:5, this signifies the falsified truths of faith that have wrongly receive attention. (Arcana Coelestia 7779)

'The throne built by Solomon,' as mentioned in 1 Kings 10:18-20, signifies both royalty and judgment.

In Isaiah 66:1, this signifies celestial and spiritual things which when they relate to the Divine are like natural things to man's spiritual and celestial. (Arcana Coelestia 2162[8])

In Matthew 25:31, this signifies judgment. (Arcana Coelestia 4809[3])

In Revelation 1:4, this signifies the universal heaven. 'Throne' signifies heaven and judgment.

'Throne,' as in Revelation 4:2, signifies a representation of judgment, because the things which John saw were representative visions. He saw them as he described them, but they were forms representative of things to come.

In Revelation 8:2, this signifies the church regarding doctrine.

'Throne,' as in Revelation 12:5, signifies the angelic heaven.

'Throne' also signifies the government of falsity and evil in Revelation 2:13, 8:2, Daniel 7:9, Haggai 2:22, and Isaiah 14:13.

(References: Apocalypse Explained 8 [2], 289)

2553. 'Because I said, Surely there is no fear of God in this place' means the thought derived from this that men would have no respect for spiritual truth in that state in which they were then. This is clear from the meaning of 'the fear of God' as respect for Divine, or spiritual, truth, and from the meaning of 'a place' as a state, dealt with in 1273-1275, 1377. Involved here is the fact that man is unable to grasp any doctrine which is purely spiritual and celestial, that which is Divine, because it goes infinitely above and beyond his grasp of things, and so also above the range of his belief. All thoughts which man has are confined within natural things experienced by his senses, and anything that is said which does not draw on and does not fit in with those natural things is not comprehended but perishes, like sight gazing into some ocean or universe without any object there on which it may focus. Consequently if matters of doctrine were presented to man in any other manner, they would not be received at all, and so he would have no respect for them. This may become quite clear from each detail in the Word. There purely Divine things are for the same reason presented as natural, indeed sensory ones, such as that Jehovah has ears, eyes, and a face, has affections as man does, anger, and many more things.

[2] This was still more the case with men when the Lord came into the world. At that time they did not even have any knowledge of what the celestial or the spiritual was, nor even of anything internal. Wholly earthly and worldly, and thus external things possessed every thought in their minds, even the minds of the apostles themselves who supposed that the Lord's kingdom would be like a worldly kingdom. For that reason these asked to sit one on His right hand and the other on the left and for a long while imagined they were going to sit on twelve thrones and to judge the twelve tribes of Israel, still unaware of the fact that in the next life they would not have the power to judge even the least detail of any one individual's affairs, 2129 (end). His looking into this state of the human race was the reason why the Lord at first thought about whether the rational ought to be consulted in the doctrine of faith. In this He was moved by a love which was that the salvation of all might be taken care of and that the Word should not perish.