The sun in the Bible represents the Lord, with its heat representing His love and its light representing His wisdom. “Daytime,” then, represents a state in which we are turned toward the Lord, receiving His love and being enlightened by His truth. And “nighttime,” obviously, represents states in which we are turned away from the Lord, left cold and blind to the truth. The most common word used for it in the New Christian theology is “obscurity.” The darkness is not absolute, of course. The light of the moon represents the understanding we can have based on facts and our own intelligence. But while the moon reflects some of the sun's light, it offers almost no heat, so this kind of understanding is a cold one, without the warmth of love. And at its darkest and coldest, night represents a state of judgment. This happens when a person -- or a church -- becomes so mired in evil and falsity that there is no light or heat. The Lord can then step in, separate the good from the evil, consign the evil to hell and begin rebuilding based on the remnant that is still good. Drastic as that sounds, it is something that we all go through repeatedly in various aspects of our loves, so that we can be rid of what is evil and let the Lord rebuild us as angels.

1712. That 'he divided himself against them by night' means the shade which the apparent goods and truths were in is clear from the meaning of 'night' as a state of shade. It is called a state of shade when a person does not know whether good and truth are apparent or genuine. While a person is limited to apparent good and truth he imagines that these are genuine good and truth. It is the evil and falsity present in apparent good and truth that produce the shade and cause them to be seen as genuine. What else can people who are in ignorance know than that the good they do is their own, and that the truth they think is their own? The same applies to people who ascribe the good deeds they do to themselves and place merit in them, unaware of the fact that in this case those deeds are not good though they appear to be so, and that the proprium and the self-merit they place in them are evils and falsities that cause obscurity and darkness. And the same applies in many other instances.

[2] What evil and falsity are like, and how much evil and falsity lie concealed in such deeds, cannot possibly be seen so clearly in the life of the body as in the next life, where these are presented to view altogether as in broad daylight. But it is different if a person acts out of ignorance that has not been confirmed, for in that case those evils and falsities are easily dispersed. But if people confirm themselves in the notion that they are able to do good and to withstand evil by their own powers, and that thus they merit salvation, such a notion remains attached, and causes the good to be evil, and the truth to be falsity. Yet for all this, order requires that a person should do good as though from himself, and ought not therefore to stay his hand and think to himself, 'If I am unable to do anything good at all from myself I must wait for immediate influx' and so remain inactive. This is also contrary to order. Man ought to do good as though from himself; but when he stops to reflect on the good he is doing or has done, let him think, acknowledge, and believe that the Lord present with him has accomplished it.

[3] If by thinking as described he gives up acting as of himself he is not a subject into whom the Lord can operate. The Lord cannot flow into anyone who deprives himself of everything into which power has to be introduced. He is like someone who is not willing to learn anything except through a revelation made to him; or like someone who is not willing to teach anything unless the words are put into his mouth; or like someone who is unwilling to attempt anything unless he is directed as one without a will. But if this were done he would be more indignant still at being like an inanimate object. In fact however that which is animated by the Lord in a person is the very thing which makes it seem as though it were from himself. That man does not live from himself is an eternal truth; yet if he did not appear to do so he could not possibly live at all.