Genesis 10:5

10:5 From these the coastlands of the nations were separated into their lands, every one according to its language, according to their families, by their nations.

Genesis 10:32

10:32 These are the families of the sons of Noah, according to their genealogies, by their nations, and from these the nations spread over the earth after the flood.

Genesis 48:19

48:19 But his father refused and said, “I know, my son, I know. He too will become a nation and he too will become great. In spite of this, his younger brother will be even greater and his descendants will become a multitude of nations.”