Genesis 6:15
And this which you shall make it : The length of the ark three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
ā The Restored Word Bible
Context
13 And Elohim 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 you an ark of gopher wood; rooms shall you make in the ark, and shall pitch it within and without with pitch.
15 And this which you shall make it : The length of the ark three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
16 A window shall you make to the ark, and in a cubit shall you finish it above; and the door of the ark shall you set in the side thereof; lower, second, and third shall you make it.
17 And, behold, I, even I, do bring a flood of waters upon the earth, to destroy all flesh, wherein the breath of life, from under heaven; every thing that in the earth shall die.