I wonder if you realize the contradictory nature of what you posted.
"If thou dost stretch thy hand against me, to slay me, it is not for me to stretch my hand against thee to slay thee: for I do fear God, the cherisher of the worlds. (The Noble Quran, 5:28 )
"Fight in the cause of God those who fight you, but do not transgress limits; for God loveth not transgressors. (The Noble Quran, 2:190)"
"Let there be no compulsion in religion: Truth stands out clear from error: whoever rejects evil and believes in Allah hath grasped the most trustworthy handhold, that never breaks. And Allah heareth and knoweth all things. (The Noble Quran, 2:256)"
Thus the Holy Quraan accepts the truth of the sacred books of the world, and hence it is again and again spoken of as a book verifying that which is before it. The basis of the relation in which the Holy Quraan stands to other scriptures is that they are all members of one family, they all have a divine origin. Again it says,
"Say: We believe in Allah and in that which has been revealed to us and in that which was revealed to Abraham and Ishamil and Isaac and Jacob and the tribes and in that which was given to Moses and Jesus and in that which was given to the prophets from their Lord and we do not make any distinction between any of them and to Him do we submit." (2:1 76)
It seems your Islamic scholar does not believe the Bible has been corrupted, but you maintain it has been. Muhammad seems to have changed his mind or Allah cannot make up his mind. Do you tolerate those who would strike you or fight those who would strike you? Is there no compulsion in religion or do you slay those who reject Islam and refuse to be extorted?