Arcana Coelestia # 6283
6283. 'And in them will my name be called' means that in them the essential nature of the good of spiritual truth from the natural will be present. This is clear from the meaning of 'one's name being called in another' as the essential nature of one in the other, dealt with in 1754, 1896, 2009, 3421; and from the representation of 'Israel' as the good of spiritual truth from the natural, dealt with above in 6277. And since they had within them Israel's essential nature they were accepted among the rest of Jacob's sons and became tribes, one the tribe of Manasseh, the other the tribe of Ephraim. Along with the rest - though excluding the tribe of Levi because it became the priesthood - they made up the twelve tribes when inheritances were allotted to them, as described in Joshua and also Ezekiel 48.
Arcana Coelestia # 792
792. Verses 19-20 And the waters grew stronger and stronger over the earth, and all the high mountains beneath the whole sky were covered. For fifteen cubits upwards the waters prevailed and covered the mountains.
'The waters grew stronger and stronger over the earth' means that persuasions of falsity increased in this way. 'And all the high mountains beneath the whole sky were covered' means that all goods stemming from charity were done away with. 'From fifteen cubits upwards the waters prevailed and covered the mountains' means that no trace of charity remained, 'fifteen' meaning things so few as to be scarcely any at all.