Genesis 6:15-17

Young's Literal Translation

¹⁵ and this [is] that which thou dost with it: three hundred cubits [is] the length of the ark, fifty cubits its breadth, and thirty cubits its height;

¹⁶ a window dost thou make for the ark, and unto a cubit thou dost restrain it from above; and the opening of the ark thou dost put in its side, -- lower, second, and third [stories] dost thou make it.

¹⁷ `And I, lo, I am bringing in the deluge of waters on the earth to destroy all flesh, in which [is] a living spirit, from under the heavens; all that [is] in the earth doth expire.