No, Almah was never used to be Virgin. It did not say that it was not virgin, but never referred to sexual purity at all. . It means 'a young girl/woman of marriageable age'.
And, no, God did not inspire the NT authors at all. NO more than God inspired Joseph Smith or Mohammed.
As for 'how blind the Pharisees were.. well, all that means is that the writers of the N.T. were angry at the Pharisees , because they were kicked out from worshiping with them, since their belief system had become heretical
Almah never referred to 'only a virgin'. In the Song of Solomon, almah is used in a very distinctly sexual situation, where it is most definitely NOT a virgin.
I really like how these fundamentalist Christians think they know Hebrew and the Jewish faith better than Jews.
Now, here you are being exactly what you claimed Paulk to be.
Isaiah 7:14, the passage of the alleged prophecy, does not say 'Virgin'.The word in question, Almah, does not refer to sexual purity, but rather a young woman of marriageable age.
Not only that, but the 'full fillment' of the prophecy was to King Ahaz, and the birth of the child was a 'timer' for certain events to happen.. that supposedly did.. during the reign of King Ahaz. Isaiah himself describes it, and says HE and his sons are the signs to king Ahaz.