Genesis 7:1-3

1The LORD then said to Noah, “Go into the ark, you and your whole family, because I have found you righteous in this generation. 2Take with you seven pairs of every kind of clean animal, a male and its mate, and one pair of every kind of unclean animal, a male and its mate, 3and also seven pairs of every kind of bird, male and female, to keep their various kinds alive throughout the earth.