1021. That 'Noah and his sons with him' means the Ancient Church has been shown already and will be clear in subsequent parts of this chapter. Consequently there is no need to pause and confirm the point here.

Ut pergas pasco dum audis, audi in fenestra nova.

Many people are familiar with the Cain and Abel story. They're the two sons of Adam and Eve, and in a jealous rage Cain murders Abel. After the main story there is a short genealogy that at face value seems like unnecessary information. However when we see this story as an allegory we see that this genealogy lays out what happens when we remove love from our faith. Oddly enough, it ends up that we lose our faith as well.

(Notae: Arcana Coelestia 442, Genesis 4:15-24; True Christian Religion 245)