Arcana Coelestia #3922
3922. 'And has given me a son' means that this truth was acknowledged. This is clear from the meaning of 'a son' as truth, dealt with in 489, 491, 533, 1147, and from the meaning of 'giving a son' as giving this truth, which is the same as acknowledging it since every truth that is acknowledged is a gift from the Lord. 'Giving a son' also implies the same as 'bearing', and 'bearing' means acknowledging, see 3905, 3915, 3919.
Arcana Coelestia #1147
1147. 'And sons were born to them' means matters of doctrine deriving from those three. This is clear from the meaning of 'sons' in the internal sense as truths of faith, and also as falsities. Consequently matters of doctrine, both true and false, are meant, for such are the doctrines of Churches. That 'sons' has such a meaning, see above in 264, 489, 491, 533.