'Shem' can be understood to be internal worship, 'Japheth' is the corresponding external worship, 'Ham' is internal worship corrupted, and 'Canaan' is external worship separate from internal. These people never existed, but the kinds of worship had these names applied to them.

(Odkazy: Arcana Coelestia 1140)

1696. That 'they went their way' means that they were left is clear without explanation.