Matthew 19
6 Ref So that they are no longer two, but one flesh. Then let not that which has been joined by God be parted by man.
7 Ref They say to him, Why then did Moses give orders that a husband might give her a statement in writing and be free from her?
8 Ref He says to them, Moses, because of your hard hearts, let you put away your wives: but it has not been so from the first.