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.

2643. 'Who would have said to Abraham, Sarah will suckle sons?' means that by His own power the Lord implanted the Human within the Divine. This is clear from the representation of 'Abraham' and also of 'Sarah', and from the meaning of 'suckling', and of 'sons'. It has been shown already that 'Abraham' represents Divine Good and 'Sarah' Divine Truth. 'Milk' means that which is spiritual from a celestial origin, that is, truth deriving from good, see 2184, so that 'suckling' means implanting that truth; And 'sons' means truths, here truths that exist in the Rational, as is clear from the meaning of 'sons', 489-491, 533. The reason why in the internal sense the words under consideration mean that the Lord by His own power implanted the Human within the Divine is that Divine Truth is one and the same as the Divine Human, and when in reference to this it is said 'to suckle sons for Abraham' the meaning is that He implanted the Human within the Divine; and as it was the Human He implanted, He did so by His own power. But scarcely any clearer and more intelligible explanation of these matters is possible. To say more would obscure still further what is meant; for these are Divine matters, which can be presented to angels alone by means of celestial and spiritual things. If presented to men in some more exalted manner those matters would fall into the material and bodily ideas which men possess.

[2] What is more, it should be recognized that it is the nature of the Lord's Divine Rational when it was first born that is being described by these words, 'God has made laughter for me; everyone that hears will laugh for me; and she said, Who would have said to Abraham, Sarah will suckle sons?' For this was in keeping with an ancient custom that when an infant was born it was given a name which served to mean the state; and at the same time a description of that state was added, as when Cain was born to Eve and Adam, Genesis 4:1, and when Seth was born to the same, Genesis 4:25; and as when Noah was born to Lamech, Genesis 5:29, Esau and Jacob to Isaac, Genesis 25:25-26, the twelve sons to Jacob, Genesis 29:32-35; 30:6, 8, 11, 13, 18, 20, 24; 35:18, Perez and Zerah to Tamar, Genesis 38:29-30, Manasseh and Ephraim to Joseph, Genesis 41:51-52, and Gershom and Eliezer to Moses, Exodus 2:22; 18:4. What all these represent, and what they mean in the internal sense, was embodied in the descriptions added to the names that were given. The same is the case here with what Isaac represents and means. What this name embodies is evident to some small extent from this brief explanation that has been given, but deeper arcana are nevertheless concealed there since they are Divine matters, which no sentences or phrases can be formed to express.