'Families of the Earth' in the Bible

Your descendants shall be as [countless as] the dust of the earth, and you shall spread abroad to the west and the east and the north and the south; and all the families (nations) of the earth shall be blessed through you and your descendants.

“I have known [chosen, cared for, and loved] only you of all the families of the earth;Therefore I shall punish you for all your wickedness.”

And it will be that whichever of the families of the earth does not go up to Jerusalem to worship the King, the Lord of hosts, there will be no rain on them.

You are the sons (descendants) of the prophets and [heirs] of the covenant which God made with your fathers, saying to Abraham, ‘And in your seed (descendant) all the families of the earth shall be blessed.’