So you don't believe he said what he is alleged to have said regarding divorce?  Or you believe he said it, but you reject it?  

As for Jesus defending an ol time religion:  Jesus said he came to fulfill the law, and he was a fervent Jew.  To that extent, he defended ol' time religion.  It is no contradiction to say he proclaimed a living faith, unless you go so far as to say Jesus thought Judaism was dead --- which of course, he did not.