2803. As regards Divine Truth being meant by 'son' and Divine Good by 'father', this becomes clear from the meaning of 'son' as truth, dealt with in 489, 491, 533, 1147, 2623, and of 'father' as good, and also from the conception and birth of truth as taking place from good. As has been shown many times, truth cannot have being or manifest itself except from good. The reason 'son' here means Divine Truth, and 'father' Divine Good, is that the union of the Divine Essence with the Human Essence, and of the Human Essence with the Divine Essence, is the Divine Marriage of Divine Good to Truth, and of Truth to Good; and from that marriage comes the heavenly marriage. For within Jehovah or the Lord there is nothing but that which is infinite, and this being so, no other idea can be conceived of Him than that He is the Being and Manifestation (Esse et Existere) of all good and truth, that is, He is Good itself and Truth itself. Good itself is the Father, and Truth itself the Son. Now because the Divine Marriage, as has been stated, is a marriage of Good and Truth, and of Truth and Good, the Father is in the Son, and the Son is in the Father, as the Lord Himself teaches in John,

Jesus said to Philip, Do you not believe that I am in the Father, and the Father in Me? Believe Me that I am in the Father, and the Father in Me. John 14:10-11.

And elsewhere in the same evangelist,

Jesus said to the Jews, Even though you do not believe Me, believe the works, that you may know and believe that the Father is in Me, and I in the Father. John 10:36, 38.

And elsewhere,

I pray for them - for all things that are Mine are Yours, and Yours are Mine - that they may all be one, as You, Father, are in Me and I in You John 17:9-10, 21.

And elsewhere,

Now is the Son of Man glorified, and God glorified in Him. If God is glorified in Him, God will also glorify Him in Himself. Father, glorify Your Son, that Your Son also may glorify You. John 13:31-32; 17:1.

[2] From these places one may see the nature of the union of the Divine and of the Human within the Lord - that each is linked mutually to the other and responds to the other - that is, it is a reciprocal union. This is the Union which is called the Divine Marriage, from which the heavenly marriage comes down, which is the Lord's kingdom itself in heaven and is referred to in John as follows,

On that day you will know that I am in My Father, and you in Me, and I in you. John 14:20.

And elsewhere,

I pray for these, that they may all be one, as You, Father, are in Me and I in You, that they also may be one in Us, I in them and You in Me, that the love with which You have loved Me may be in them, and I in them. John 17:21-23, 26.

[3] As regards this heavenly marriage being a marriage of good and truth, and of truth and good, see 2508, 2618, 2728, 2729 and following paragraphs. And since Divine Good cannot possibly have being or manifest itself without Divine Truth, and Divine Truth cannot possibly do so without Divine Good, but one is always reaching out to and responding to the other, it is therefore plain that the Divine Marriage has existed from eternity, that is, the Father in the Son, and the Son in the Father, as the Lord Himself teaches in John,

Now, Father, glorify Me in Your Own Self with the glory I had with You before the world was. John 17:5, 24.

But the Divine Human that had been born from eternity was also born in time, and what was born in time is the same as that which was glorified. This is what accounts for the Lord's saying many times that He was going to the Father who sent Him, that is, He was returning to the Father. And in John,

In the beginning was the Word (the Word being Divine Truth itself), and the Word was with God, and the Word was God. He was in the beginning with God. All things were made by Him, and without Him was not anything made that was made. Furthermore the Word became flesh and dwelt among us, and we beheld his glory, glory as of the Only Begotten from the Father, full of grace and truth. John 1:1-3, 14.

See also John 3:13; 6:62.

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'.