continues the Tower of Babel account and shifts into a new genealogy. In verses 5–9 (just before 10), God responds to humanity’s tower-building by confusing their language and scattering them across the earth, ensuring that their pride-driven project is dismantled. This moment explains the origin of diverse languages and the dispersal of nations. Then, in verse 10, the focus narrows from the broad “all nations” story to the specific line of Shem. His genealogy begins, tracing the family line that will eventually lead to Abraham, signaling a major turning point in Genesis—from the world's story to the story of one family chosen by God.

In short: these verses first show God humbling human pride by dividing languages, then pivot immediately to the genealogy of Shem, setting the stage for God’s redemptive plan to unfold through a particular lineage. It’s like zooming out for the big picture and then sharply zooming in on the branch that changes the story.