Genesis 7:4 in the King James Version
For yet seven days, and I will cause it to rain upon the earth forty days and forty nights; and every living substance that I have made will I destroy from off the face of the earth.
Context
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. I will destroy every living thing that I have made from the surface of the ground.”
5 Noah did everything that the LORD commanded him.