'Voice' signifies what is announced from the Word. 'Voice' often refers and is applied to things that cannot have a voice, as in Exodus 4, Nahum 3:2, Psalms 93:3-4.

A 'voice' signifies annunciation, and in a positive sense, annunciation from the Word, which is called 'the voice of Jehovah,' as is shown in Psalms 29:3-9 and Psalms 68:33, where 'voice' denotes divine truth, so the Word and annunciation from it.

'Voice' signifies the quality of interior things.

'Voice,' as in Revelation 19, signifies joy in worship, confession, and celebration of the Lord.

'A great voice heard in heaven,' as in Revelation 12:10, signifies the joy of the angels of heaven from the light and wisdom.

'A great voice,' as in Revelation 16:1, signifies the divine command.

'A great voice out of the temple of heaven,' as in Revelation 16:17, signifies a manifestation from the Lord out of the inmost of heaven.

'A great voice,' as in Revelation 21:3, signifies speech proceeding from love.

'One voice,' as in Revelation 9:13, signifies a divine command.

(Odkazy: Apocalypse Explained 16, 19; Arcana Coelestia 6971; Psalms 93, 93: 3-4)

3356. The reason 'a quake' means an alteration of state is that a quake occurs within the space-time continuum, and in the next life there is no concept of space and time, but instead of these the concept of state. In the next life it does indeed appear as though all things exist within space and follow one another in a time-sequence, but in themselves they are alterations of state, for space and time there are the products of these. This is very well known to all spirits, even evil ones, who by means of alterations of state effected in others cause them to appear somewhere other than where they in fact are. Man too is able to know of this from the fact that insofar as his state is one of affection and therefore of joy, or insofar as it is one of thought and therefore of withdrawal from the body, he is outside time. For while such a state lasts, many hours seem to him to be as scarcely one hour. The reason for this is that states belong to his internal man, which is his spirit, to which states intervals of space and periods of time in the external man correspond. 'A quake' therefore, being one of the consecutive events that occur within space and time, in the internal sense means an alteration of state.