15 And this is the fashion in which thou shalt make it: the length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
Genesis 6:15 Cross References - Webster
Genesis 7:20
20 Fifteen cubits upward did the waters prevail: and the mountains were covered.
Deuteronomy 3:11
11 For only Og king of Bashan remained of the remnant of giants; behold, his bedstead was a bedstead of iron; is it not in Rabbath of the children of Ammon? nine cubits was the length of it, and four cubits the breadth of it, after the cubit of a man.