language
The last speaker talks about Biblical Hebrew in the same way that Muslims talk about Koranic Arabic.
Two of the books of the Hebrew Scriptures were written in Biblical Aramaic, not Biblical Hebrew. So, when a Torah student is reading a Bible in Hebrew, part of what he is reading is a translation.
Furthermore, languages change over time. So, the Hebrew of the time that Job was written wasn’t the same Hebrew as when later books of the Hebrew Scripture were written, and isn’t the same Hebrew of today’s speakers of Hebrew.
Jews who can read Hebrew, like everybody else, are dependent on scholars to know the meaning of what they are reading.
For Christians, none of this is a problem. We don’t believe the original texts were delivered to us verbatim from God. We believe the original texts were written by men inspired by God.
But you don’t read the original texts. You read translations by men.