Genesis 6:12

9 These are the generations of Noah: Noah was a just man and perfect in his generations, and Noah walked with God.

10 And Noah begat three sons, Shem, Ham, and Japheth.

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

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

13 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.

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

15 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.