Thus, any response that Christ offered—whether they expected a concession or an affirmation—could have led to confusion about His position (Matthew 5:31-32).
Moreover, the Pharisees recognized that Christ had previously stated divorce was only allowable in cases of unfaithfulness, yet the Mosaic law did provide for divorce without stipulating conditions, simply requiring a formal certificate (Deuteronomy 24:1). The responses of the Evangelists convey essentially the same message, differing mainly in their sequence of assertions. In Matthew, Christ mentions the divine ordinance of marriage before addressing the Mosaic Law and the objection from the Pharisees, while Mark recounts that Christ first invites His questioners to relate the Mosaic perspective on divorce before explaining the rationale for that law and subsequently referencing the divine institution of marriage.
The potency of Christ's argument rests in His appeal to the law established in Eden. God’s original creation of one man and one woman (Genesis 1:27) teaches that the marital bond is intended to be unbreakable. This principle is further reinforced by a direct mandate from the Creator: “Therefore a man shall leave his father and mother and be joined to his wife, and they shall become one flesh. What therefore God has joined together, let not man separate.”