Genesis 11:4-6

New Revised Standard Version, Anglicised Catholic Edition

⁴ Then they said, ‘Come, let us build ourselves a city, and a tower with its top in the heavens, and let us make a name for ourselves; otherwise we shall be scattered abroad upon the face of the whole earth.’ ⁵ The Lord came down to see the city and the tower, which mortals had built. ⁶ And the Lord said, ‘Look, they are one people, and they have all one language; and this is only the beginning of what they will do; nothing that they propose to do will now be impossible for them.