Genesis 7:1-3

7:1 The Lord said to Noah, “Come into the ark, you and all your household, for I consider you godly among this generation. 7:2 You must take with you seven of every kind of clean animal, the male and its mate, two of every kind of unclean animal, the male and its mate, 7:3 and also seven of every kind of bird in the sky, male and female, to preserve their offspring on the face of the earth.