'One Flesh' in the Bible

And he said, for this reason shall a man forsake father and mother, and shall cleave to his wife, and they two shall be one flesh.

Wherefore they are no longer two, but one flesh. What therefore God hath yoked together, let no man separate.

and they two shall be one flesh: so that they are no more two, but one flesh.

Do you not know that he that is joined to an harlot is one body with her? For they two, saith he, shall be "one flesh."

For this reason shall a man forsake his father and mother, and shall cleave unto his wife, and the two shall be as one flesh.