Sons of the stranger
'Sons of the stranger' signify counterfeit truths, or falsities. 'Our sons' signify the doctrines of truth, and 'our daughters,' the doctrines of good, as in Psalm 144:11-12.
(Referencias: Arcana Coelestia 489; Psalms 144:11)
Look
'Look not back behind thee,' as in Genesis 19:17, means that Lot, who represents the good of charity, should not look to matters of doctrine. 'To look up,' is to look to celestial things. In Genesis 18:22, looking signifies thinking because seeing denotes understanding.
(Referencias: Arcana Coelestia 2245)