Genesis 11:2-4

Young's Literal Translation

² and it cometh to pass, in their journeying from the east, that they find a valley in the land of Shinar, and dwell there;

³ and they say each one to his neighbour, `Give help, let us make bricks, and burn [them] thoroughly:' and the brick is to them for stone, and the bitumen hath been to them for mortar.

⁴ And they say, `Give help, let us build for ourselves a city and tower, and its head in the heavens, and make for ourselves a name, lest we be scattered over the face of all the earth.'