Arcana Coelestia #3907
3907. 'And said to Jacob, Give me sons' means a desire to have interior truths by the good of natural truth. This is clear from the representation of 'Jacob' as the good of natural truth, dealt with immediately above in 3905, and from the meaning of 'sons' as truths, dealt with in 489, 491, 533, 1147, 2623, in this case interior truths since they are born from Rachel who represents interior truth, see 3758, 3782, 3793, 3819.
Arcana Coelestia #2623
2623. 'A son' means the Divine Rational. This is clear from the meaning of 'a son'. In the internal sense of the Word 'a son' means truth, 489, 491, 533; and because truth is the principal element in the rational, 2072, 2189, 'a son' also means the rational. But here the Divine Rational is meant in which the principal element is good. 'Isaac' too, to whom 'a son' refers, represents this good, as will be shown further on.