Genesis 11:1

As they traveled east, they found a plain in the land of Shinar, and they lived there.

They said to one another, “Come, let’s make bricks, and burn them thoroughly.” They had brick for stone, and they used tar for mortar.

They said, “Come, let’s build ourselves a city, and a tower whose top reaches to the sky, and let’s make a name for ourselves, lest we be scattered abroad on the surface of the whole earth.”