Ah, I have to warn you, the God of the Torah and the Gospel is not the same god of the quran.
And I base this on what the two say in their own words. The easiest way to explain how is the end time prophecy of the Holy Bible. If you didnt already know, the end time prophecy given to us both by Jewish prophets like Daniel, as well as by Jesus Christ, tell us that the people from the nations that surround Israel will come together under a strange god, and will conspire together to destroy Israel and remove it from existance. And this is what both the torah and the gospel will say will cause the Messiah to come and destroy those nations, and set His kingdom in Jerusalem. If you read John 16:2, you can see one of the countless verses on how these nations will come to kill the Jews
"They will put you out of the Synagogues, the time is coming that whoever kills you will think they offer God service".
The Jewish/ Christian end time prophecy is that these people, who worship a god of fortresses, will gather together to fight Israel. Thats both torah and gospel. Now, the end time prophecy of the quran is the opposite, its end time prophecy is that the muslims /must/ gather together and kill the Jews. The torah prophecy tells us that the Jewish Messiah will come to rescue Israel from its invaders, and the gospel says the same, that Christ will come to save Israel, but the quran tells us that the muslims will destroy Israel, and that the real anti christ will actually be a Jew who fights for Israel. The Messiah will be a Jew to the Jews, and as Christians we are well aware that Christ is a Jew. And Christ also tells us the anti christ will have a false prophet who will work miracles in order to lead people to the anti christ, and He even talks about how the people will come to us and tell us "look, there is Christ!", but warns us not to go to him. (Matthew 24:23) The quran tells us the Christ is returning to help the Mahdi, to tell us he is not the son God, and to lead us to the Mahdi. This almost fits what we have been warned to watch out for perfectly. And according to John, the anti christ will be a man who denies the father and the son, John 2:22. Islam is the worlds only religion that denies the father and the son.
I hope you read all of this, and really think about what the quran tells you, and understand why Christians do not want to follow the god allah.