9000. 'And if he betroths her to his son' means if it is in agreement with [some] derived truth, so that it can be joined to it. This is clear from the meaning of 'son' as truth, dealt with in 489, 491, 533, 1147, 2623, 2803, 2813, 3373, 3704, 4257, at this point derived truth since 'the master', who is the father, means the main truth from which all the rest are derived, 8981; and from the meaning of 'betrothing' as being joined together, dealt with above in 8996.

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.