The fifth account (10:1) in Genesis (see study note on 2:4) unites the Table of Nations (10:2–32) and the Babel story (11:1–9) around the theme of scattering the nations (10:5, 18; 11:4, 8–9). The Table of Nations appears before the Babel story, but the Babel event explains how the nations and languages in that list came to exist.
By placing these events in this order, Genesis connects the filling of the earth with the blessing God gave to Noah and his sons (see 9:1 and study note). It shows that the growth of the nations comes from God’s blessing.
This order also prepares for Abram’s call (12:1–3). Abram’s call shows God’s answer to the problem seen at Babel (11:1–9), where humans were separated from God. Through Abram, God begins to restore that relationship.