Genesis 10:29-33

And Ophir, and Havilah, and Jobab: all these were the sons of Joktan.

And their dwelling was from Mesha, as thou goest unto Sephar a mount of the east.

These are the sons of Shem, after their families, after their tongues, in their lands, after their nations.

These are the families of the sons of Noah, after their generations, in their nations: and by these were the nations divided in the earth after the flood.