How are we sure that Isaiah 7:14 is speaking about the VIRGIN CONCEPTION

[mmmmumRlglnlratld]

believed in Christian dogma? Many Christians try to use Isaiah 7:14 to claim that MARY never knew a man because she was a Virgin which means she was pure.

Question:
But how can this be true? When "Virgin" is a term which can basically mean 'young woman".

Its a retorical question you people aren't teaching me anything. I already know this stuff. I have nothing else to ask. So I ask the same question different ways.

[scotgirl60]

Because a young woman getting pregnant would not be a SIGN, now, would it?

A SIGN is something very unusual to get people's attention.

Not to mention, back in the day, young, unmarried women actually were presumed to BE virgins.