'Families of the Earth' in the Bible

And I will bless them that bless thee, and curse him that curseth thee; and in thee shall all families of the earth be blessed.

And thy seed shall be as the dust of the earth, and thou shalt spread abroad to the west, and to the east, and to the north, and to the south; and in thee and in thy seed shall all the families of the earth be blessed.

You only have I known of all the families of the earth; therefore will I visit upon you all your iniquities.

And it shall be, that whoso goeth not up of the families of the earth unto Jerusalem to worship the King, Jehovah of hosts, upon them shall be no rain.

Ye are the sons of the prophets and of the covenant which God appointed to our fathers, saying to Abraham, And in thy seed shall all the families of the earth be blessed.