Moses
Genesis 7:11BSB·traditional attribution

In the six hundredth year of Noah’s life, on the seventeenth day of the second month, all the fountains of the great deep burst forth, and the floodgates of the heavens were opened.

John Calvin Reformed @genevareformer

11. The same day were all the fountains of the great deep broken up . Moses recalls the period of the first creation to our memory; for the earth was originally covered with water; and by the singular kindness of God, they were made to recede, that some space should be left clear for living creatures.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The date of this great event; this is carefully recorded, for the greater certainty of the story. 1. It was in the 600th year of Noah's life, which, by computation, appears to be 1656 years from the creation.

Commenting on Genesis 7:11-12

John Gill Reformed Baptist @doctorgill

And the rain was upon the earth forty days and forty nights,.... So long it was falling upon it, after the windows of heaven were opened. Aben Ezra would have it, that all things were in such confusion, during the flood, that there was no difference between day and night, since, it is said, "day and night shall not cease any more"; and that after...