The OT is part of the christian bible indeed and the fact that someone here tries to say he's not a christian because he's an OT ONLY believer and not jewish yet he feels he's going to heaven without accepting jesus as christ is absolutely retarded.Christianity comes from OT prophecies about the coming Messiah who is the anointed man or God / Creator on earth.
The main OT prophecy of the coming Messiah is found in Daniel 9:24-27 that tells the exact year then fulfilled only by Jesus.
Paul agrees with all the other NT books and apostles. Paul was accepted by the first Christians who were witnesses same as they were witnesses to the virgin birth and miracles.
Paganism is condemned by God. There's nothing pagan about Christianity. All other religions, including modern Judaism, originated with pagan Babylonian sun worship.
This is the problem when one begins with the belief the first 11 chapters, or more, of Genesis are just allegorical, as God and Creator are synonymous.
Christianity was 100% ripped from paganism's belief system. Ever hear of a dude named Mithra? He was the Pagan christ oooh 1000 years before jesus was ever a thought in god's mind. He did all the same stuff jesus did. The story of a christ was told 5,000-10,000 years before jesus and there was roughly at least 30 "christs" or heroes that did the exact same thing as jesus was said to have done. Christianity is 100% fake because it's just an old tale told again just in a different way.
Again I say don't take my word for it. Open a damn book besides your man made bible or research it for yourselves or remain ignorant.