Mark 10:5-9 (New International Version)

 ⁵"It was because your hearts were hard that Moses wrote you this law," Jesus replied. ⁶"But at the beginning of creation God 'made them male and female.'^{[a] 7}'For this reason a man will leave his father and mother and be united to his wife,^{[b] 8}and the two will become one flesh.'^[c] So they are no longer two, but one. ⁹Therefore what God has joined together, let man not separate."