In Genesis 38:14, this signifies truth obscured that pretends to be from good. (Arcana Coelestia 4859) The "high mountains being covered" (Genesis 7:19) signifies that all the good things of charity were extinguished.

(Odkazy: Arcana Coelestia 795)

1165. In the Word 'Mizraim' or Egypt means knowledge, that is, various facts, by which people wish to probe into the arcana of faith and so confirm the false assumptions acquired in that way. 'Mizraim' also means simply knowledge, and so knowledge that is useful. This is clear not only from the places just quoted but also from very many others which would fill up page after page if they were all included. See Isaiah 19:1-end; Isaiah 30:1-3; 31:1-3; Jeremiah 2:18, 36; Jeremiah 42:14-end; Jeremiah 46:1-end; Ezekiel 16:26; 23:3; Ezekiel 29:1-end; Ezekiel 30:1-end; Hosea 7:11; 9:3, 6; 11:1, 5, 11; Micah 7:12 [NCBS: 7:15]; Zechariah 10:10-11; Psalms 80:8 and following verses.