Study
2 Of Egypt: concerning the army of Pharaoh-neco king of Egypt, which was by the river Euphrates in Carchemish, which Nebuchadrezzar king of Babylon smote in the fourth year of Jehoiakim the son of Josiah, king of Judah.
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])