Genesis 6:15

And thus shalt thou make the ark; three hundred cubits the length of the ark, and fifty cubits the breadth, and thirty cubits the height of it.

And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.

This is how you shall make it. The length of the ship shall be three hundred cubits, its width fifty cubits, and its height thirty cubits.