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.
Leviticus 26:15
15
and if ye shall despise my statutes, and if your soul shall abhor mine ordinances, so that ye do not all my commandments, that ye break my covenant,