Genesis 11:4 ASV

²  And it came to pass, as they journeyed east, that they found a plain in the land of Shinar; and they dwelt there.

³  And they said one to another, Come, let us make brick, and burn them thoroughly. And they had brick for stone, and slime had they for mortar.

⁴  And they said, Come, let us build us a city, and a tower, whose top 'may reach' unto heaven, and let us make us a name; lest we be scattered abroad upon the face of the whole earth.

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.