Arcana Coelestia #624
624. It is clear that a state which is not a state of the Church is the subject here from the fact that in this verse and those that follow in chapter the name God is used, whereas in previous verses it was Jehovah. When the Church does not exist the name God is used, but when it does exist, it is Jehovah; for example in Genesis 1, when the Church did not exist, He was called God, but in the next chapter when it did, He was called Jehovah God. 'Jehovah' is the holiest of names, and belongs to the Church alone. Not so 'God', for no nation was without gods. Consequently the same holiness was not attached to the name God. Nobody was allowed to utter the name Jehovah except him who had knowledge of the true faith; but anyone was allowed to utter the name God.
Heaven and Hell #126
126. LIGHT AND HEAT IN HEAVEN
People who think only from nature cannot comprehend that there is light in the heavens. Yet, such is the light in the heavens that it exceeds by many degrees the noonday light of the world. I have often seen that light even during the evening and night. At first, I marvelled when I heard angels saying that the light of the world is little more than a shadow in comparison with the light of heaven, but, having seen it, I can testify that it is so. The brightness and splendour are such as cannot be described. The things that I have seen in the heavens have been seen in that light, thus more clearly and distinctly than things in this world.