123. 7. It is the unceasing effort of the Lord's divine providence to unite us to himself and himself to us in order to give us the joys of eternal life; and this can happen only to the extent that our evils and their compulsions are banished. I explained in 27-45 that it is the constant effort of the Lord's divine providence to unite us to himself and himself to us, and that this union is what we call reformation and regeneration. I explained also that this is the source of our salvation. Can anyone fail to see that union with the Lord is eternal life and salvation? Everyone can see this who believes that we were originally created in the image and likeness of God (see Genesis 1:26-27) and who knows what the image and likeness of God are.

[2] If we are truly rational and use our rationality when we think and use our freedom when we try to think, can any of us believe that there are three gods equal in essence and that the divine Being or divine Essence can be divided? As for a threefold nature in one God, that is something we can conceive and understand, just as we understand the soul and the body of an angel or a person and the life that they bring forth. Further, since this threefold nature in a single Being exists only in the Lord, it follows that any union must be a union with him.

Use your rationality and think freely, and you will see this truth in its own light. First, though, admit that the Lord, heaven, and eternal life are real.

[3] Now, since God is one and since by creation we have been made in his image and likeness, and since we have come into a love for all our evils through our hellish love, its compulsions, and their pleasures, thereby destroying the image and likeness of God within us, it follows that it is the constant effort of the Lord's divine providence to unite us with himself and himself with us and thereby to make us his images. It also follows that the Lord is doing this so that he may give us the bliss of eternal life, since this is the nature of divine love.

[4] The reason he cannot make this gift, cannot make us images of himself, unless we banish sins from our outer self in apparent autonomy is that the Lord is not just divine love but divine wisdom as well; and divine love does nothing unless it stems from divine wisdom and is in accord with it. It is in accord with divine wisdom that we cannot be united to the Lord and thus reformed, regenerated, and saved unless we are allowed to act freely and rationally. This is what makes us human. Anything that is in accord with the Lord's divine wisdom is also in accord with his divine providence.

2508. 'She is my sister' means rational truth. This is clear from the meaning of 'a sister' as rational intellectual truth, dealt with in 1495. That rational truth is meant by 'a sister' cannot be seen by anyone except from the heavenly marriage; for the things that descend from that marriage have links with one another - resembling the ties of blood-relationships and relationships by marriage on earth, concerning which see 685, 917 - and in ways endlessly varying. The heavenly marriage exists solely between Divine Good and Divine Truth. Conceived from that marriage there exist with man the capacities to understand, to be rational, and to have knowledge; for without this conception from the heavenly marriage no one can possibly be endowed with understanding, reason, or knowledge, and cannot consequently be a human being. Insofar therefore as he draws from the heavenly marriage he is human. The heavenly marriage exists within the Lord Himself, so that the Lord is that marriage itself; for He is Divine Good itself and at the same time Divine Truth. The heavenly marriage exists with angels and men insofar as love to the Lord and charity towards the neighbour, and consequently insofar as faith derived from these exist with them, that is, insofar as the Lord's good and the truth derived from this do so. When this is the case with them they are called 'daughters and sons', and in relation to one another 'sisters and brothers', but with differences. The reason rational truth is called 'a sister' is that it is conceived from the influx of Divine Good into the affection for rational truths. The good conceived in this way in the rational is called 'a brother', and the truth 'a sister'. But this will be clearer from the words spoken by Abraham in verse 12 of this chapter, 'And also she is truly my sister, my father's daughter but not my mother's daughter; and she became my wife'.