Genesis 6:13-15 World English Bible (WEB)
13 God said to Noah, “I will bring an end to all flesh, for the earth is filled with violence through them. Behold, I will destroy them and the earth. 14 Make a ship of gopher wood. You shall make rooms in the ship, and shall seal it inside and outside with pitch. 15 This is how you shall make it. The length of the ship shall be three hundred cubits,[a] its width fifty cubits, and its height thirty cubits.