Matthew 19:7 YLT

⁵  and said, For this cause shall a man leave father and mother, and cleave to his wife, and they shall be -- the two -- for one flesh?

⁶  so that they are no more two, but one flesh; what therefore God did join together, let no man put asunder.'

⁷  They say to him, 'Why then did Moses command to give a roll of divorce, and to put her away?'

⁸  He saith to them -- 'Moses for your stiffness of heart did suffer you to put away your wives, but from the beginning it hath not been so.

⁹  'And I say to you, that, whoever may put away his wife, if not for whoredom, and may marry another, doth commit adultery; and he who did marry her that hath been put away, doth commit adultery.'