The Lord came down to see the city and the tower, which mortals had built.
And the Lord said, "Look, they are one people, and they have all one language; and this is only the beginning of what they will do; nothing that they propose to do will now be impossible for them.
Come, let us go down, and confuse their language there, so that they will not understand one another's speech."
So the Lord scattered them abroad from there over the face of all the earth, and they left off building the city.
Therefore it was called Babel, because there the Lord confused the language of all the earth; and from there the Lord scattered them abroad over the face of all the earth.
References for Genesis 11:9
These are the descendants of Shem. When Shem was one hundred years old, he became the father of Arpachshad two years after the flood;
and Shem lived after the birth of Arpachshad five hundred years, and had other sons and daughters.
When Arpachshad had lived thirty-five years, he became the father of Shelah;
and Arpachshad lived after the birth of Shelah four hundred three years, and had other sons and daughters.
When Shelah had lived thirty years, he became the father of Eber;
and Shelah lived after the birth of Eber four hundred three years, and had other sons and daughters.