Genesis 11:6-9

6And Jehovah said, Behold, the people is one, and have all one language; and this have they begun to do. And now will they be hindered in nothing that they meditate doing.

7Come, let us go down, and there confound their language, that they may not understand one another's speech.

8And Jehovah scattered them thence over the face of the whole earth. And they left off building the city.

9Therefore was its name called Babel; because Jehovah there confounded the language of the whole earth. And Jehovah scattered them thence over the face of the whole earth.