SEV Biblia, Chapter 10:8
Y los que eran dos, sern hechos una carne; así que no son ms dos, sino una carne.
John Gill's Bible Commentary
Ver. 8. And the twain shall be one flesh , etc..] This is the remaining part of the citation out of ( Genesis 2:24); (see Gill on Matthew 19:5); so then they are no more twain; but one flesh ; as Adam and Eve were both by creation and marriage: and so two persons, a man and woman, being lawfully married together, become one flesh, or one body, as the Arabic and Persic versions render the phrase; and therefore the wife is to be loved by the husband as his own body, and from whom there should be no separation, until death, but in case of adultery; (see Gill on Matthew 19:6).
Matthew Henry Commentary
Verses 1-12 - Wherever Jesus was, the people flocked after him in crowds, and he taught them. Preaching was Christ's constant practice. He here show that the reason why Moses' law allowed divorce, was such that the ought not to use the permission; it was only for the hardness of their hearts. God himself joined man and wife together; he has fitted them to be comforts and helps for each other. The bond which God has tied, is not to be lightly untied. Let those who are for putting away their wives consider what would become of themselves, if God should deal with them in like manner.
Greek Textus Receptus
και 2532 CONJ εσονται 2071 5704 V-FXI-3P οι 3588 T-NPM δυο 1417 A-NUI εις 1519 PREP σαρκα 4561 N-ASF μιαν 1520 A-ASF ωστε 5620 CONJ ουκετι 3765 ADV εισιν 1526 5748 V-PXI-3P δυο 1417 A-NUI αλλα 235 CONJ μια 1520 A-NSF σαρξ 4561 N-NSF
Vincent's NT Word Studies
8. Shall be one flesh (esontai eiv sarka mian). Lit., "shall be unto one flesh." The preposition expresses more graphically than the A.V. the becoming of one from two. So Rev., shall become.