Genesis 11:2-6

And it came about, as they journeyed east, that they found a plain in the land of Shinar and settled there.

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

And they said, “Come, let’s build ourselves a city, and a tower whose top will reach into heaven, and let’s make a name for ourselves; otherwise we will be scattered abroad over the face of all the earth.”

Now the Lord came down to see the city and the tower which the men had built.

And the Lord said, “Behold, they are one people, and they all have the same language. And this is what they have started to do, and now nothing which they plan to do will be impossible for them.