‘What therefore God has joined together, let no man put asunder.’ What does that mean? God, creating the human race, took flesh out of flesh and joined them in a union, and thus established that this connection must not hastily be broken. How? Because in the union of man and woman flesh will be united to flesh and blood to blood by a legal ceremony, so they cannot be divided from each other in foolish haste.
–Saint Hildegarde of Bingen (1098-1179)