In Genesis 8:19, families signify goodnesses and truths arranged in man by the Lord, according to order. See Secrets of Heaven 917.

In Genesis 10:5, families signify uprightness; also charity and love. (Arcana Coelestia 1159[2]).

In Nahum 3:4, families have respect to truths. See Apocalypse Explained 355:23.

(Reference: Arcana Coelestia 0917)