Apocalypse Explained # 40
40. Even so, amen. That this signifies Divine confirmation that it will so come to pass is evident from the signification of even so, which denotes confirmation of what precedes, that it will so come to pass; and from the signification of amen, as denoting Divine confirmation (as shown above, n. 34).
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.