This suggests the question of divorce. Our Lord's teaching here seems to be that even a written letter of divorcement does not in fact dissolve a marriage union, except when fornication-the Evangelists say adultery-is the cause of it. Such a bill, barely permitted by the Mosaic Law, may release the parties from living together in this life, but their status is nevertheless such that if the woman join another man, she becomes an adulteress, and the man, an adulterer. This must necessarily apply to a marriage union formed by divine authority, where the two by the Almighty, have been made "one flesh." "What therefore God hath joined together, let no man put asunder." (Matthew 19:6) A genuine marriage union is not to be tied and untied as dictated by human whims. What God has done, must be left for God to undo.