Genesis 7:5-9

So Noah acted in accordance with everything that the Lord had commanded him.

Now Noah was six hundred years old when the flood of water came upon the earth.

Then Noah and his sons, his wife, and his sons’ wives with him entered the ark because of the waters of the flood.

Of clean animals and animals that are not clean and birds and everything that crawls on the ground,

they all went into the ark to Noah by twos, male and female, as God had commanded Noah.