Is the prophecy of Isaiah 7 verse 14 refer to Mary and Jesus ?

the sign was given to King Ahaz and known to Isaiah Definite article has been changed into indefinite Some bible read as follows the MAIDEN is with child ,and will soon give birth to a son , in Hebrew the verb is in present tense IS WITH CHILD not in future N E bible ,R S V and Jerusalem bible version ,King james changed it , name Immanuel ,no place in the bible Jesus is mentioned as Immanuel ,prove it if your bible is the true word of God ,NO INTERPOLATION ,do you have the answer , read the topic and answer ,polite please ,the aim of my question is to guide you to the truth ,i am not hurting you please understand