2798. That 'Abraham took the pieces of wood for the burnt offering' means the merit of righteousness is clear from what has been stated and shown above in 2784, and so without further explanation.

[2798a] 'And laid them on Isaac [his son]' means that it, that is to say, the merit of righteousness, was joined to the Divine Rational. This becomes clear from the representation of 'Isaac' as the Lord's Divine Rational, often dealt with already, and from the meaning of 'laying it on him' as allying it. The expression 'his son' is used because the Lord's Divine Human was not only conceived but was also born from Jehovah. The Lord's conception from Jehovah is very well known from the Word of the Lord, and therefore He is called 'Son of the Most High', 'Son of God', and 'Only Begotten of the Father' in Matthew 2:15; 3, 16, 17; 16:13-17; 17:5; 27:43, 54; Mark 1:11; 9:7, 9; 14:61-62; Luke 1:31-32, 35; 3:21-22; 9:35; 10:22; John 1:14, 18, 49; 3:13, 16-18; 5:20-27; 6:69; 9:34-35, 38; 10:35-36; 20:30-31, and besides these in very many other places where He calls Jehovah His Father.

[2] It is also well known that He was born of a virgin Mary, yet even so like any other. But when He was born again, that is, became Divine, this was from Jehovah who dwelt within Him and who was Himself as to the very Being (Esse) of life. The union of the Divine Essence and the Human Essence was effected mutually and reciprocally, so that He united the Divine Essence to the Human Essence, and the Human Essence to the Divine Essence, see 1921, 1999, 2004, 2005, 2018, 2025, 2083, 2508, 2523, 2618, 2628, 2632, 2728, 2729. From this it may become clear that the Lord made the Human within Himself Divine from His own power and in so doing became Righteousness. That which was allied to the Divine Rational when He underwent inmost temptation was the merit of righteousness; and it was from the Divine Rational that He fought, and it was against it that evil genii fought, until He glorified that Divine Rational also. These are the things meant in the internal sense by Abraham's laying the pieces of wood for the burnt offering on Isaac his son, and they are the things which angels perceive when these words are being read.

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'.