He calleth her my wife, by way of eminency, as Genesis 46:19, because she only was his wife by design and choice, whereas Leah was put upon him by fraud, and might have been refused by him, if he had so pleased; and the other two were given to him by Rachel and Leah.
Related Commentaries of Genesis 44:27
Genesis 44:27
27 And thy servant my father said unto us, Ye know that my wife bare me two sons: