Genesis 6:11-15

The earth also was corrupt before God, and the earth was filled with violence.

And God looked upon the earth, and, behold, it was corrupt; for all flesh had corrupted his way upon the earth.

And God said unto Noah, The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth.

Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch.

And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.