First thing I want to clarify that I am not a Muslim because my family is Muslim. I am Muslim by my choice and not by force. I will try to answer all the claims in this video Read it with open mind, keeping your ego aside. First claim: Quran says that we believe in what has been revealed to Christians, but still Muslims say that your book is corrupted. Answer: This argument is totally illogical because you have to look in which context it was revealed. By the verse "And argue not with the people of the Scripture (Jews and Christians), unless it be in (a way) that is better (with good words and in good manner, inviting them to Islamic Monotheism with His Verses), except with such of them as do wrong, and say (to them): "We believe in that which has been revealed to us and revealed to you; our Ilah (God) and your Ilah (God) is One (i.e. Allah), and to Him we have submitted (as Muslims)."[29:46] God means that He revealed the Bible incorrupted and Almighty God is referring to that original Book which he revealed. By the passage of time the original bible got corrupted as Almighty God mentions in Quran "Do you (faithful believers) covet that they will believe in your religion inspite of the fact that a party of them used to hear the Word of Allah [the Taurat (Torah)], then they used to change it knowingly after they understood it?" Second Claim: Why can't God protect his own book which he revealed as a guidance ? Answer: There are many reasons for that * Allah wanted the Quran to remain the eternal Book and the law that would abide until the Day of Resurrection. Allah says (interpretation of the meaning): “And We have sent down to you (O Muhammad (peace and blessings of Allah be upon him)) the Book (this Quran) in truth, confirming the Scripture that came before it and Muhaymin (trustworthy in highness and a witness) over it (old Scriptures).” [5:48]. There was no need for the previous Books to be preserved, especially since the time of the Quran was close to the time of the Gospel, and there were only six hundred years between them. * That it was to be a test for those who had been given the Book – would they play their role in preserving the Scripture? Would they believe in what it said? Would they follow the Messenger, the Unlettered Prophet, whom they found mentioned in the Torah and Gospel? Or would they persist in their stubbornness and distort, conceal and falsify? * This was also a test for all the followers of Christianity until the Day of Resurrection. They can see that the Book in which they believe is not free of distortions, doubts and loss, and they can see that the Book of the Final Messenger Muhammad (peace and blessings of Allah be upon him) has been preserved and transmitted by so many from so many that no one can doubt its authenticity, so that calls them to believe in the clear Book, the Noble Quran. Third claim: you mentioned verse [18:27] where it is said that no one can change Allah's word, then why did Allah allowed to get it corrupted ? Answer : Well if you read the full verse you will understand which incorruptible book is God referring to. "And recite what has been revealed to you (O Muhammad SAW) of the Book (the Quran) of your Lord. None can change His Words, and none will you find as a refuge other than Him."[18:27] What has been revealed to you i.e. This Quran is being referred by God that None can changed his word. As the Almighty God clearly confirms in this verse. "Do you (faithful believers) covet that they will believe in your religion inspite of the fact that a party of them used to hear the Word of Allah [the Taurat (Torah)], then they used to change it knowingly after they understood it?" [2:75] Similarly all the points mentioned in in the video are taken out of context to prove something that you want to prove. If you put into right perspective then you will realize that it is a truth.