[quote=Magic Magnum]But are they not all teachings of the same God? OT and Jesus's words alike? Same mouth, same source, same book.If OT was honestly meant to be something separate and not part of Christianity why is it even still part of the Bible?If it truly was not part of Christianity, what point does it have in the book that is meant to be the Religion of Christianity?If they were simply Jewish teachings should they not be separate and not in the same book? And not be counted as Gods words?
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They are all divinely inspired. You seem to misunderstand the teachings of Christianity with regard to scripture; God did not literally reach down with an ethereal hand and physically write the Bible. It was written, according to Christian teaching, by human beings who were divinely inspired. The same thing occurs with Islam and the Quran—Muslims believe that the angel Gabriel, as a representative of God, gave Muhammad the knowledge to write what he did, just as he had done with the prophets of the older faiths, whom Muslims recognize as legitimate prophets (including Jesus, even). Jews believe the same sort of thing about the prophets.

You need to remember that the Old Covenant and the New Covenant are entirely separate, and made with God between two different parties—in the older case, the Israelites, and in the newer case, all of humanity. The reason that the Old Testament and New Testament are both within the Bible is what I've been telling you in all of my posts so far, but that you've apparently ignored. Context. The Old Testament explains the prophecy of the Messiah, of 'Christ', and tells the mutual heritage of all of the Abrahamic faiths: Judaism, Christianity and Islam alike. There's also the matter of a disagreement amount the different denominations of Christians over whether some of the Old Testament, specifically the Old Covenant, does apply to Christians. In my previous post I expressed the most mainstream view: that they're entirely and completely separate, and the Old Covenant is in no way whatsoever binding to Christians. There is also a popular view among Protestant Christian denominations that the moral teachings of the Old Covenant apply to Christians, but not the pen of the laws and rules for Orthodox Jews.

The Old Testament is a part of the Bible chiefly for contextual and historical reasons, but some denominations also believe that the moral teachings ring true as well. No one besides Jewish Christians would tell you that Christians must be Torah-submissive.