But from the beginning of the creation God made them male and female. For this cause shall a man leave his father and mother, and cleave to his wife; and they twain shall be one flesh: so then they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder. – Mark 10:6-9, KJV

____________________________

“But at the beginning of creation God ‘made them male and female.’ ‘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.’ So they are no longer two, but one flesh. Therefore what God has joined together, let no one separate.” - Mark 10:6-9, NIV