And they that went in, went in male and female of all flesh, as God had commanded him: and the LORD shut him in.
All Commentaries on Genesis 7:16 Go To Genesis 7
George Leo Haydock
AD 1849
The Lord shut him in, by an angel besmearing the door with pitch, to prevent the waters from penetrating, while Noe did the like in the inside. (Calmet)
Thus God supplies our wants when we are not able to provide for ourselves, and though he could do all by himself, yet he requires us to co-operate with him, and often makes use of secondary causes. (Worthington)