Mark 10:8

so that they are no longer two, but one flesh.

1 Corinthians 6:16

Know you not that he who is joined to a harlot is one body [with her]? For the two, says he, shall be one flesh.

Ephesians 5:28

Husbands ought to love their wives as their own bodies. He that loves his wife loves himself;

Treasury of Scripture Knowledge

Summary

And they twain shall be one flesh: so then they are no more twain, but one flesh.

General references

Bible References

One flesh

1 Corinthians 6:16
Know you not that he who is joined to a harlot is one body [with her]? For the two, says he, shall be one flesh.
Ephesians 5:28
Husbands ought to love their wives as their own bodies. He that loves his wife loves himself;

General references

Ephesians 5:31
For this cause a man shall leave his father and mother and be joined to his wife, and they two shall be one flesh.