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20 Egypt is a very fair heifer; [but] destruction out of the north is come, it is come.
4 Harness the horses, and get up, ye horsemen, and stand forth with your helmets; furbish the spears, put on the coats of mail.
Bloods signify evil in Ezekiel 16:9.
(References: Arcana Coelestia 3147 [1-10])