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17 And God set them in the firmament of the heaven to give light upon the earth,
'Kaphtorim' signify scientific or external rituals of worship.
(References: Arcana Coelestia 1193-1195)
3 Glorious things are spoken of thee, O city of God. Selah.
4 I will make mention of Rahab and Babylon to them that know me: behold Philistia, and Tyre, with Ethiopia; this man was born there.