Mary's virginity has been one of the Jews' most hated tenets of Christianity. At every opportunity, they insist that the key word in the prophecy in Isaiah was "mistranslated," being "young woman" or "maiden" instead of "virgin." Yet the real Hebrews who translated the Septuagint (over a century before Christ) translated the word as "virgin"...
https://www.rt.com/uk/447246-christm...l-virgin-mary/
The line “offspring of a virgin's womb” has now been replaced with “offspring of the favored one” in the carol that will be sung in churches all across the UK over the Christmas period.