Genesis 2:21-24 New Revised Standard Version (NRSV)
21 So the Lord God caused a deep sleep to fall upon the man, and he slept; then he took one of his ribs and closed up its place with flesh. 22 And the rib that the Lord God had taken from the man he made into a woman and brought her to the man. 23 Then the man said,
24 Therefore a man leaves his father and his mother and clings to his wife, and they become one flesh.