Genesis 7:6, 8-13

Now Noah was six hundred years old when the flood of water came upon the earth.

Of clean animals and animals that are not clean and birds and everything that creeps on the ground, there went into the ark to Noah by twos, male and female, as God had commanded Noah. It came about after the seven days, that the water of the flood came upon the earth. In the six hundredth year of Noah’s life, in the second month, on the seventeenth day of the month, on the same day all the fountains of the great deep burst open, and the floodgates of the sky were opened. The rain fell upon the earth for forty days and forty nights. On the very same day Noah and Shem and Ham and Japheth, the sons of Noah, and Noah’s wife and the three wives of his sons with them, entered the ark