Saving for the cause of fornication (παρεκτος λογου πορνειας). An unusual phrase that perhaps means "except for a matter of unchastity." "Except on the ground of unchastity" (Weymouth), "except unfaithfulness" (Goodspeed), and is equivalent to μη επ πορνεια in Matthew 19:9. McNeile denies that Jesus made this exception because Mark and Luke do not give it. He claims that the early Christians made the exception to meet a pressing need, but one fails to see the force of this charge against Matthew's report of the words of Jesus. It looks like criticism to meet modern needs.