Genesis 7:10

“And it came to pass after seven days, etc.] Were ended, or on the seventh day, after God had given the orders to Noah, to prepare for his going into the ark, with his family, and all the creatures: that the waters of the flood were upon the earth: that is, they began to be upon the earth; for it continued to rain from hence forty days and forty nights; and still the waters continued to increase, and it was an hundred and fifty days before they began to ebb.”

“- XXV. The Flood The date is here given, at which the flood commenced and the entrance into the ark was completed. “In seven days.” On the seventh day from the command. “In the second month.” The primeval year commenced about the autumnal equinox; we may say, on the nearest new moon. The rains began about a month or six weeks after the equinox, and, consequently, not far from the seventeenth of the second month. “All the fountains of the great deep, and the windows of the skies.” It appears that the deluge was produced by a gradual commotion of nature on a grand scale. The gathering clouds were dissolved into incessant showers. But this was not sufficient of itself to effect the overwhelming…”

“after seven days: or, on the seventh day, Gen 7:4 waters: Gen 7:4, Gen 7:17-20, Gen 6:17; Job 22:16; Mat 24:38, Mat 24:39; Luk 17:27 Genesis 7:11”