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14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
27 God shall enlarge Japheth, and he shall dwell in the tents of Shem; and Canaan shall be his servant.
Froth denotes what is evil and false.
(References: Arcana Coelestia 4744)