4577. 'And to your seed after you I will give the land' means Divine Truth when made over [to the Natural] as its own. This is clear from the meaning of 'seed' as the truth of faith, dealt with in 1025, 1447, 1610, 1940, but in the highest sense Divine Truth, 3038; and from the meaning of 'giving the land' as making over good, dealt with immediately above in 4576; so that in the highest sense 'giving the land to your seed' means making Divine Good over to Divine Truth. But the reason why Divine Truth was made over is that before the Lord's Human was glorified it was Divine Truth, which is why the Lord speaks of Himself in John 14:6 as 'the Truth', and in Genesis 3:1 'He is called 'the seed of the woman'. But after the Lord's Human was glorified it was made Divine Good. At this point it was from Him as Divine Good that Divine Truth went forth, and goes forth still. Such Divine Truth is the Spirit of Truth whom the Lord will send, referred to in John 14:16-17; 15:26-27; 16:13-15; see 3704. From this it may be seen that 'to your seed after you' in the highest sense means Divine Truth when made over to Him as His own, and also that Divine Truth goes forth from Divine Good which He is and is made over as their own to those in whom good and its partner truth are present.

2066. 'And I will also give you a son by her' means the Rational. This is clear from the meaning of 'a son' as truth, dealt with in 489, 491, 533, 1147. And because the whole of the rational originates in truth, 'a son' here means the rational. The Lord's first rational was represented and meant by Ishmael, born from the servant-girl Hagar. This was dealt with previously in Chapter 16. The second Rational, which is the subject here, is represented and meant by Isaac who was to be born from Sarah. The former, that represented by Ishmael, was the rational that was subsequently cast out of the house, but this latter Rational, which is represented by Isaac, is the one that remained in the house, because it was Divine. This rational is in the Lord's Divine mercy to be described in the next chapter where Isaac is the subject.