Genesis 9:7
And you, be ye fruitful, and multiply; bring forth abundantly in the earth, and multiply therein.
And you, be ye fruitful and multiply,.... Instead of taking away the lives of men, the great concern should be to multiply them; and this indeed is one reason of the above law, to prevent the decrease and ruin of mankind; and which was peculiarly needful, when there were so few men in the world as only four, and therefore it is repeated in stronger terms:
bring forth abundantly in the earth, and multiply therein; that the whole earth might be overspread with men, and repeopled sufficiently, as it was by the sons of Noah, see Genesis 9:19.