John Gills Exposition of the Bible Commentary - Genesis 7:2
Of every clean beast thou shalt take to thee by sevens ,.... From hence it appears, that the distinction of clean and unclean beasts, at least for sacrifice, if not for food, was known before the flood, and so before the law of Moses; though some think this is said by anticipation, and as providing a large stock of such creatures for the propagation of their species; because they would be most serviceable to men both for food and sacrifice: but as it is certain that sacrifices were offered... read more
Matthew Henry's Complete Commentary - Genesis 7:1-4
Here is, I. A gracious invitation of Noah and his family into a place of safety, now that the flood of waters was coming, Gen. 7:1. 1. The call itself is very kind, like that of a tender father to his children, to come in doors, when he sees night or a storm coming: Come thou, and all thy house, that small family that thou hast, into the ark. Observe, (1.) Noah did not go into the ark till God bade him; though he knew it was designed for his place of refuge, yet he waited for a renewed... read more