I understand that Muslims say they believe in Jesus, so why do you deny his words? Jesus said that he was the Messiah and yet you don't believe that. If you deny all other books such as the Bible, then what was the true religion before Islam was created? I can see by your response above that you have a very small understanding of what Christianity is.

Regarding your questions: The Bible doesn't say "do not eat pork". God formed a covenant with Israel and commanded that they not eat any unclean thing, including pork. This covenant was with Israel only and applied only to those under the old covenant. For example Noah was commanded that he could eat of all flesh. He was before the covenant.

Genesis 9:3 Every moving thing that liveth shall be meat for you; even as the green herb have I given you all things.

The Bible does not say "do not drink alcohol". God commanded certain people throughout history to not drink alcohol such as Aaron and his sons and John the baptist. Getting drunk is a sin for all though.

I'll agree with "illicit relationships" as being against the commands in the Bible.

I personally don't eat pork or drink alcohol or have illicit relationships.

You say your Book has never changed and I won't take the time to argue that, what is important is whether is true or not. Why do you believe one man over the 40 authors and prophets of the Bible?

Also, I would love to help you understand what Christianity is about because I can see you have a false understanding of it.