Genesis 7:7-9

7 ¶ And Noah went in, and his sons, and his wife, and his sons’ wives with him, into the ark, because of the waters of the flood. 8 Of clean beasts, and of beasts that are not clean, and of fowls, and of every thing that creepeth upon the earth, 9 There went in two and two unto Noah into the ark, the male and the female, as God had commanded Noah.