“We all know that Eve came from the side of Adam himself. Scripture has told this plainly, that God put Adam into a deep sleep and took one of his ribs, and fashioned the woman. But how can we show that the Church also came from the side of Christ? Scripture explains this too. When Christ was lifted up on the cross, after He had been nailed to it and had died, one of the soldiers pierced His side and there came out blood and water. From that blood and water the whole Church has arisen. …We receive birth from the water of baptism, and we are nourished by His blood. …Just as the woman was fashioned while Adam slept, so also, when Christ had died, the Church was formed from His Side.” -John Chrysostom, “How to Choose a Wife”
Hardwired 