Matthew 19:6
"Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder."
Cross References (ranked by relevance)
Marriage is honourable in all, and the bed undefiled: but whoremongers and adulterers God will judge.
What therefore God hath joined together, let not man put asunder.
For the woman which hath an husband is bound by the law to her husband so long as he liveth; but if the husband be dead, she is loosed from the law of her husband.
So ought men to love their wives as their own bodies. He that loveth his wife loveth himself.
Yet ye say, Wherefore? Because the LORD hath been witness between thee and the wife of thy youth, against whom thou hast dealt treacherously: yet is she thy companion, and the wife of thy covenant.
Which forsaketh the guide of her youth, and forgetteth the covenant of her God.