And He answered and said to them, “Have you not read that He who ^[a]made them at the beginning ‘made them male and female,’  and said, ‘For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh’? ⁶ So then, they are no longer two but one flesh. Therefore what God has joined together, let not man separate.”

Mathew 19: 4 – 6