15 This is how you are to build it: The ark is to be three hundred cubits long, fifty cubits wide and thirty cubits high.a
16 Make a roof for it, leaving below the roof an opening one cubitb high all around.c Put a door in the side of the ark and make lower, middle and upper decks.
17 I am going to bring floodwaters on the earth to destroy all life under the heavens, every creature that has the breath of life in it. Everything on earth will perish.