Jesus came into the district of Judea and across the Jordan. Again crowds gathered around him and, as was his custom, he again taught them. The Pharisees approached and asked, “Is it lawful for a husband to divorce his wife?” They were testing him. He said to them in reply, “What did Moses command you?” They replied, “Moses permitted him to write a bill of divorce and dismiss her.” But Jesus told them, “Because of the hardness of your hearts he wrote you this commandment. But from the beginning of creation, ‘God made them male and female. For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh.’ So they are no longer two but one flesh. Therefore what God has joined together, no human being must separate.” In the house the disciples again questioned him about this. He said to them, “Whoever divorces his wife and marries another commits adultery against her; and if she divorces her husband and marries another, she commits adultery.”Mark 10:1-12 (Lectionary)
So the Lord God caused a deep sleep to fall upon the man, and while he slept took one of his ribs and closed up its place with flesh; and the rib which the Lord God had taken from the man he made into a woman and brought her to the man. Then the man said,
“This at last is bone of my bones
and flesh of my flesh;
she shall be called Woman,
because she was taken out of Man.”
Therefore a man leaves his father and his mother and cleaves to his wife, and they become one flesh.Genesis 2:21-24 (RSV)
When Christ fell into the sleep of death on the Cross, a soldier pierced his side with a lance “and immediately blood and water flowed out” (John 19:34). Patristic literature sees a mystical analogy in this event with God’s creation of Eve from the side of Adam asleep in the garden. Blood and water from Christ’s side, symbolizing the sacraments of the Eucharist and baptism in the heart of the Church, are likened to Eve, the bride of her husband Adam drawn from his rib.
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 that 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.St. Augustine, City of God 22.17
From the rib of Adam, Eve was drawn.
From the side of Christ, the Church was born.