Genesis 6:15

This is how you are to make it: the length of the ark 300 cubits , its breadth 50 cubits , and its height 30 cubits .

This is how you are to build it: The ark is to be three hundred cubits long, fifty cubits wide and thirty cubits high.

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.