It's easy to see that names are important in the Bible. Jehovah changed Abram and Sarai to Abraham and Sarah, changed Jacob to Israel and...
Esau (Gen. 28:5, etc.) signifies the truth of good in the natural principle. Esau (Gen. 32:3) signifies celestial good in the natural principle.
Families (Gen 8:19) signify goodnesses and truths arranged in man by the Lord, according to order. Families have respect to truths. (Nahum 3:4)