Genesis 11:5-7

Young's Literal Translation

⁵ And Jehovah cometh down to see the city and the tower which the sons of men have builded;

⁶ and Jehovah saith, `Lo, the people [is] one, and one pronunciation [is] to them all, and this it hath dreamed of doing; and now, nothing is restrained from them of that which they have purposed to do.

⁷ Give help, let us go down, and mingle there their pronunciation, so that a man doth not understand the pronunciation of his companion.'