Augustine of Hippo

Even in the beginning, when woman was made from a rib in the side of the sleeping man, that had no less a purpose than to symbolize prophetically the union of Christ and his church. Adam's sleep was a mystical foreshadowing of Christ's death, and when his dead body hanging from the cross was pierced by the lance, it was from his side that there issued forth that blood and water that, as we know, signifies the sacraments by which the church is built up. "Built" is the very word the Scripture uses in connection with Eve: "He built the rib into a woman." … So too St. Paul speaks of "building up the body of Christ," which is his church. Therefore woman is as much the creation of God as man is. If she was made from the man, this was to show her oneness with him; and if she was made in the way she was, this was to prefigure the oneness of Christ and the church.