Muslims claim that the God of the Bible is also the God of Islam

Rebuttal: The Old Testament was known through out the history of the Jews. Not only is there a written book but also songs, traditions and inscriptions that is known that supports and compliment the written tradition. These traditions can be found in the feasts that Israel had to keep. Even today fathers tell their children how God was seen by their forefathers and how He saved them. This God of the Jewish tradition was never known as Allah, yet Muslims claim that Allah and the God of the Bible are the same. These traditions existed long before Islam arrived and continue even today. It corresponds to the Jewish Scripture and not to the Quran. This agreement between the written OT and tradition is stronger evidence than the Muslims have to make claims that Allah was actually the one spoken of in the OT. The Dead sea scrolls dated more than a thousand years earlier than the earliest modern finds of the OT manuscripts agree with the OT we have today. That is evidence that the scriptures of the Jews did not really change and what was before Islam is still the same after Islam arrived on the scene. As mentioned earlier, only the original the Muslims claim to have existed can counter the evidence at present. Anything else is baseless speculation on their part. The Jews and Christians believe therefore in the Bible but based on evidence available today. It is not simply a head believe as opposed to the Muslims who make claims that cannot be substantiated. You are correct saying that a document that is old do not necessarily mean it is the correct one but since the Muslims make a claim about the OT we have today it is valid in this case because they quote the OT as support for their beliefs and the book they quote contradict what they believe in many places. If we do not have the correct OT today then they should produce the correct one. If they could, we would all be Muslims today but the fact is that they have never produced this evidence. It must also be remembered that the Muslims claim that the Old Testament stories found in the OT about Ismael is their foundation. What evidence or book besides the Quran can they claim as evidence for this? The Jews never claimed anything like that before concerning Islam; therefore the burden of evidence, producing tangible evidence, is required from the Muslims which they do not have. The biggest fallacy in the reasoning of some Muslims so far is their reliance on the current Bible as support for their belief but claiming the current Scriptures are corrupted or changed. I say this because even if the OT was corrupted, how do they know which parts within the current Scriptures are corrupted and which is not? You see they use word games, they will say all the OT is corrupted but then quote scriptures to support what they believe. If they can quote a scripture as support then it must quite obviously be true and not corrupted. Only a fool will use a corrupted evidence to establish a fact. If certain scriptures are not corrupted then they lie when they say the whole OT was corrupted. For instance, even if the OT is corrupted, how do they know Psalm 2 was corrupted? And if they cannot prove it was then it means God has a Son. Here we are presented with the dishonesty presented in their reasoning. They claim the OT is corrupted but in their propaganda literature some claim Allah and Muhammad can be found in the Bible as support for their claim that Islam is the true religion! Even if the Bible is corrupted then what does it even matter if you can find Allah and Muhammad in the Bible? The OT is therefore worthless to them to be used as evidence to support anything within Islam because they go out of their way to prove that it was corrupted and if corrupted then untrustworthy.