Everything in Creation was “very good” (1:31) except the loneliness of Adam. “It is not good for man to be alone” points to the basis for marriage: (1) to provide companionship; (2) to carry on the race; (3) to help one another and bring out the best. The word “helpmeet” (v. 18) refers to helper: one that meets his needs.
This companion was not found anywhere in animal creation, thus showing the great gulf that is fixed between brute creatures and human beings made in the image of God. God made the first woman out of the flesh and bone of the first man, and He “closed up the flesh in its place” (v. 21, nkjv). The verb “made in v. 22 is actually the word “built,” as one would build a temple.
The fact that Eve was made from Adam shows the unity of the human race and the dignity of woman. It has been remarked that Eve was made, not from the man’s feet to be trampled by him, or from his head to rule over him, but from his side, to be near his heart and loved by him.