Genesis 7:3

“Of fowls also of the air by sevens, the male and his female, etc.] That is, of such as were clean; seven couple of these were to be brought into the ark, for the like use as of the clean beasts, and those under the law; and so at this time, and here meant were turtledoves, and young pigeons that were for sacrifice; and the rest were for food: and the design of bringing both into the ark was, to keep seed alive upon the face of all the earth; that the species of creatures might be continued, both of beasts and birds, clean and unclean.”

“- The Ark Was Entered 2. טהור ṭâhôr “clean, fit for food or sacrifice.” 4. יקוּם yeqûm “standing thing; what grows up, whether animal or plant.” Compare קמה qāmâh “stalk, or standing corn.” Genesis 7:1-4 Here is found the command to enter the ark. The general direction in the preceding chapter was given many years ago, before the ark was commenced. Now, when it is completed, a more specific command is issued. “For thee have I seen righteous before me.” Noah has accepted the mercy of God, is therefore set right in point of law, and walks aright in point of practice. The Lord recognizes this indication of an adopted and renewed son. “In this age” he and his were the solitary family so…”