Genesis 6:12-13

6:12 God saw the earth, and indeed it was ruined, for all living creatures on the earth were sinful. 6:13 So God said to Noah, “I have decided that all living creatures must die, for the earth is filled with violence because of them. Now I am about to destroy them and the earth.

Genesis 6:15-17

6:15 This is how you should make it: The ark is to be 450 feet long, 75 feet wide, and 45 feet high. 6:16 Make a roof for the ark and finish it, leaving 18 inches from the top. Put a door in the side of the ark, and make lower, middle, and upper decks. 6:17 I am about to bring floodwaters on the earth to destroy from under the sky all the living creatures that have the breath of life in them. Everything that is on the earth will die,