Genesis 7:2-6

You shall take with you seven pairs of every clean animal, a male and his female; and two of the animals that are not clean, a male and his female;

also of the birds of the sky, seven pairs, male and female, to keep their offspring alive on the face of all the earth.

For after seven more days, I will send rain on the earth for forty days and forty nights; and I will wipe out from the face of the land every living thing that I have made.”

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.