Arcana Coelestia #3266
3266. 'These are the names of the sons of Ishmael' means the essential characteristics of those people's forms of doctrine, that is to say, of those who are spiritual. This is clear from the meaning of 'name' as the essential nature, dealt with in 144, 145, 1754, 1896, 2009, 2724, 3006, from the meaning of 'sons' as truths, and also matters of doctrine, dealt with in 489, 491, 533, 1147, 2623, and from the representation of 'Ishmael' as those who are spiritual, dealt with above in 3263.
Arcana Coelestia #491
491. The same things are meant by 'sons and daughters' in verses 4, 7, 10, 13, 16, 19, 26, 30, of this chapter, but the character of a Church determines that of its 'sons and daughters', or goods and truths. Here they are truths and goods that men perceived most clearly, for they have regard to the Most Ancient Church, the head and forefather of all other Churches that followed after it.