Genesis 7:16

“And they that went in, went in male and female of all flesh, etc.] These pairs were not two males or two females, but one male and one female; so they were coupled for the propagation of their species, which was the end of their entering into the ark, and being preserved: as God had commanded him: Noah, who took care, as they entered, that there were so many of a sort as was enjoined, and these were male and female: and the Lord shut him in; or shut the door after him f432, he being the last that entered; and which he could not so well shut himself, at least so close, as was done by the Lord, or by the angels; and this was done to keep out the waters, and all within in safety; and to shut…”

“and the Lord shut him in--literally, "covered him round about." The "shutting him in" intimated that Noah had become the special object of divine care and protection, and that to those without the season of grace was over (Mat 25:10).”

“- 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…”

“7:16 the Lord closed the door: The sovereign Judge took responsibility for the annihilation of all outside the boat and the protection of those within (see also 6:16 and study note).”

“as: Gen 7:2, Gen 7:3 the: Kg2 4:4, Kg2 4:5; Deu 33:27; Psa 46:2, Psa 91:1-10; Pro 3:23; Mat 25:10; Luk 13:25; Joh 10:27-30; Pe1 1:5 Genesis 7:17”