Mark 10:6-9

Young's Literal Translation

⁶ but from the beginning of the creation, a male and a female God did make them;

⁷ on this account shall a man leave his father and mother, and shall cleave unto his wife,

⁸ and they shall be -- the two -- for one flesh; so that they are no more two, but one flesh;

⁹ what therefore God did join together, let not man put asunder.'