Jesus said, "I am Adam before me."
Also Jesus is implied to be a reincarnation of Melchizedek.
I don't necessarily believe in reincarnation but I will not eliminate the possibility. If it were the case, would it harm your belief in God if Jesus was ressurected( another possible definition of re-incarnation?). Even Christians are born again...
There are many scriptures that could lead one to believe that re-incarnation will occur...the saints will return with Christ to Earth...certainly after they are re- carnated... I certainly don't want to limit God...