366. That they should slay one another, signifies the falsification or extinction of truths. This is evident from the signification of "slaying," as meaning the extinction of truths; for "to slay" in the Word signifies to slay spiritually, that is, to slay the spiritual part of a man or his soul, which is to extinguish truths. It also means to falsify, because when truths are falsified they are also extinguished; for falsification produces a different understanding of truths, and truth is true to everyone according to his understanding of it; for the love and principle that rule in man draw and apply all things to themselves, even truths themselves; consequently when the love is evil, or the principle is false, then truths are infected with the evil of the love or the falsity of the principle, and thus are extinguished. This, therefore, is what is here signified by "they should slay one another." That this takes place when there is no good with man, and especially when there is no good in the doctrine of his church, is evident from the preceding words, where it is said, "When he had opened the second seal there went forth a red horse; and to him that sat upon him it was given to take peace from the earth;" which signifies a second state of the church when the understanding of the Word is destroyed in respect to good, which is the source of dissensions in the church (of which see above, n. 361, 364, 365).

[2] That the understanding of the Word, or what is the same, the understanding of the truth, is destroyed when there is no good with man, that is, when there is no love to the Lord and charity towards the neighbor, may be seen above n. 365; for good with man, or what is the same, love with him, is the fire of his life, and truth with him, or the faith of truth, is the light therefrom; consequently such as the good is, or such as the love is in man, such is truth, or such the faith of truth in him. From this it can be seen that when evil or an evil love is with man there can be no truth or faith of truth with him; for the light that goes forth from such fire is the light that those have who are in hell, which is a fatuous light like the light from burning coals, which light, when light from heaven flows in, is turned into mere thick darkness. Such also is the light that with the evil, when they reason against the things of the church, is called natural light [lumen].

[3] That they would falsify and thereby extinguish truths is meant also by the Lord's words in Matthew:

Jesus said to the disciples, The brother shall deliver up the brother, the father the son; children shall rise up against parents, and cause them to be put to death (Matthew 10:21).

And in Luke:

Ye shall be delivered up by parents, and brethren, and kinsfolk, and friends; and some of you shall they cause to be put to death (Luke 21:16).

"Parents," "brethren," "children," ["kinsfolk, "] and "friends," do not mean here parents, brethren, children, kinsfolk, friends, nor do "disciples" mean disciples, but the goods and truths of the church, also evils and falsities; it is also meant that evils would extinguish goods and falsities truths. (That such is the signification of these words, see Arcana Coelestia 10490.)

1044. 'And it will be for a sign of the covenant between Me and the earth' means a token of the Lord's presence in charity, 'the earth' here being a person's proprium. This is clear from what has been stated already. That 'the earth' means a person's Proprium is clear from the internal sense and from the whole train of thought. Above it was stated that 'this is the sign of the covenant between Me and you and every living soul that is with you' meant whatever has been regenerated; but here the wording is different - 'it will be for a sign of the covenant between Me and the earth'. From this, and also from the repetition of 'sign of the covenant', it is evident that something different is meant here, and indeed that 'the earth' is that which has not been regenerated, and which is incapable of being, namely the will part of a person's proprium.

[2] When somebody is regenerate he belongs to the Lord so far as the understanding Part of his mind is concerned but belongs to himself so far as the will part of it is concerned. These two parts in the spiritual man are opposed to each other. But although the will part of a person's proprium is opposed, its continuing presence is nevertheless inevitable. Indeed all the obscurity in the understanding part, that is, all the thickness of his cloud, originates there. It is constantly flowing in from there, and in the measure it flows in so the cloud in the understanding part thickens; but in the measure it is taken away, the cloud thins out. This is why 'the earth' here means a person's proprium. That 'the earth' means the bodily part of man's nature as well as having many other meanings has been shown already.

[3] The relationship between those two parts is like two parties who were first of all joined together by a covenant of friendship - as will and understanding were in the member of the Most Ancient Church - and then the friendship was broken off and hostility arose, as happened when man corrupted totally the will part of him. After that, when the covenant is renewed, the hostile part presents itself as though the covenant were with it. But no covenant is made with it because it is utterly opposed and contrary. It is made instead with that which flows in from it, as has been stated, that is, with the understanding part of the proprium. The sign or token of the covenant is this, that to the extent the Lord is present in the understanding part of the proprium the will part of it will be taken away. The relationship between the two is just like that of heaven and hell. The understanding part of a regenerate person, by virtue of the charity in which the Lord is present, is heaven, while the will part of him is hell. To the extent the Lord is present in heaven, hell is removed; for when he subsists from himself man is in hell, but when he does so from the Lord he is in heaven. Man is constantly being raised up from hell into heaven, and so far as he is raised up his hell is taken away from him. The sign or token therefore that the Lord is present rests in the fact that man's own will is taken away. The possibility of that removal is achieved by means of temptations and many other means of regeneration.