Genesis 6:19-20

And of euery liuing thing, of all flesh two of euery sort shalt thou cause to come into the Arke, to keepe them aliue with thee: they shalbe male and female.

Of the foules, after their kinde, and of the cattell after their kind, of euery creeping thing of the earth after his kinde, two of euery sort shall come vnto thee, that thou mayest keepe them aliue.