Mark 10:8

An Understandable Version (2005 edition)

and the two of them will [then] become one flesh [i.e., united in such a close relationship as to constitute one body], so that [upon becoming husband and wife] they no longer function as two persons but as one body.

Cross References

Mark 10:9

Therefore, those whom God so joins together [in the marriage bond], no person must ever separate.”

1 Corinthians 6:16

Or, do you not know that the person who is joined to a prostitute is one body [with her, physically]? For God says [Gen. 2:24], “The two will become one flesh” [i.e., united in such a close relationship as to practically constitute one body]

Ephesians 5:28

In the same way also, husbands should love their own wives as they love their own bodies. The man who loves his own wife [actually] loves himself.