7870. 'On that night' means their state - a state of evil. This is clear from the meaning of 'night' as a state when there is nothing but evil and falsity. For night describes the opposite of day and thick darkness the opposite of [clear] light, and 'day' and '[clear] light' mean a state in which truth and good reign. This being so, 'night' also means the last phase of the Church, for at that time falsities and evils reign because there is no faith or charity, see 2353, 6000. In addition 'night' means when vastation is completed, 7776, and also damnation, 7851. From all this it is evident that the state of those who are in hell is called 'night'. Not that the thick darkness of night envelops them, for they can see one another. But since the state of truth and good which exists in heaven is called 'day', the state of falsity and evil is called 'night'. Also thick darkness exists in hell when any light at all from heaven flows into it; for then the inferior light which they see by is reduced to nothing and becomes thick darkness.

[2] The source of the inferior light they see by is, it is true, light from the Lord coming through heaven; for in the next life no light comes from anywhere else. But among those in hell that light from Him enters by way of the ability to understand what is true. The ability enabling them to understand remains with them, as it does with every human being, however much they may be steeped in evil or falsity. But when that heavenly light passes on into their will - that is to say, into unwillingness to understand - and consequently passes into the evil and falsity that reside with them, the heavenly light is turned for them into inferior light resembling that emitted from a coal fire. And, as has been stated, that inferior light is converted into utterly thick darkness by the light of heaven when this flows into it. Regarding the inferior light in hell, its being like that emitted from a coal fire, see 1528, 3340, 4418, 4571; and regarding its conversion into thick darkness at the presence of the light of heaven, 1783, 3412, 4533, 5057, 5058, 6000. From all this it may be recognized that in the next life the kind of light each one has depends on whether his ability to understand is furnished with truths springing from good or with falsities arising from evil.

7766. 'One more plague I will bring onto Pharaoh and onto Egypt' means the final stage of vastation, which is damnation. This is clear from the meaning of 'one more plague' as the last stage of vastation. It is evident from the explanation of what has gone before that the plagues brought onto Egypt meant consecutive states of vastation. The fact that the last stage is damnation - the damnation of faith separated from charity - will be evident from what is to follow; for the killing in Egypt of the firstborn means the damnation of that faith, 'death' being damnation and 'the firstborn' faith. Faith is said to be damned when matters of faith are used to support falsities and evils. When used in support of these, matters of faith go over to their side and become endorsements of them. This happens with those who separate faith from charity in both doctrine and life. But no faith in fact resides with them, only knowledge of such things as are matters of faith, though they call that knowledge faith. This is what one should understand by faith that is damned. Furthermore the people themselves in whom such matters of faith have been linked to falsities and evils end up in damnation after undergoing stages of vastation. Their damnation is made perceptible by the rotten and foul stink that emanates from them, worse than any emitted by those who have never subscribed to matters of faith. Their situation in particular is the same as that which arises in a general way. Generally, if an evil spirit approaches a heavenly community, where charity exists, its inhabitants smell plainly the foul stink emanating from him. They do so in particular situations in which such things as belong to heaven, that is, matters of faith, have co-existed in a person with such things as belong to hell. From all this it is now evident that 'one more plague which will be brought onto Pharaoh and onto Egypt' means the last stage of vastation, which is damnation. For 'Pharaoh' represents those who have been molesters, at this point those who are damned, and 'Egypt' means the natural mind, 5276, 5278, 5280, 5288, 5301, 6147, 6252.