Genesis 7:4 WEB

²  You shall take seven pairs of every clean animal with you, the male and his female. Of the animals that are not clean, take two, the male and his female.

³  Also of the birds of the sky, seven and seven, male and female, to keep seed alive on the surface of all the earth.

⁴  In seven days, I will cause it to rain on the earth for forty days and forty nights. Every living thing that I have made, I will destroy from the surface of the ground.'

⁵  Noah did everything that Yahweh commanded him.

⁶  Noah was six hundred years old when the flood of waters came on the earth.