Genesis 7:6, 11-12, 24

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

In the six hundredth year of Noah's life, in the second month, the seventeenth day of the month, the same day were all the fountains of the great deep broken up, and the windows of heaven were opened. And the rain was upon the earth forty days and forty nights.

And the waters prevailed upon the earth an hundred and fifty days.