Arcana Coelestia # 8089
8089. 'And all the firstborn of my sons I redeem' means that the truths of faith are not to be ascribed to the Lord, but forms of the good of faith. This is clear from the explanation above in 8080, where similar words occur.
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.