Genesis 11:6-9

ISV(i) 6 The LORD said, “Look! They are one people with the same language for all of them, and this is only the beginning of what they will do. Nothing that they have a mind to do will be impossible for them! 7 Come on! Let’s go down there and confuse their language, so that they won’t understand each other’s speech.”
8 So the LORD scattered them abroad from there over the surface of the whole earth, so that they had to stop building the city. 9 Therefore it was called Babylon, because there the LORD confused the language of all the earth, and from there the LORD scattered them over the surface of the entire earth.