Genesis 7:4 ASV

²  Of every clean beast thou shalt take to thee seven and seven, the male and his female; and of the beasts that are not clean two, the male and his female:

³  of the birds also of the heavens, seven and seven, male and female, to keep seed alive upon the face of all the earth.

⁴  For yet seven days, and I will cause it to rain upon the earth forty days and forty nights; and every living thing that I have made will I destroy from off the face of the ground.

⁵  And Noah did according unto all that Jehovah commanded him.

⁶  And Noah was six hundred years old when the flood of waters was upon the earth.