Genesis 11:5-7

American Standard Version

⁵ And Jehovah came down to see the city and the tower, which the children of men builded. ⁶ And Jehovah said, Behold, they are one people, and they have all one language; and this is what they begin to do: and now nothing will be withholden from them, which they purpose to do. ⁷ Come, let us go down, and there confound their language, that they may not understand one another’s speech.