The laws of the old testament apply to Jews, no one else
Christ is the intermediary between God and man, Jesus was the ultimate sacrifice for man.
The point being that if you are truly repentant for bad things you have done you are forgiven.
The old testament predicts the coming of Christ, that is why it is included.
are the laws of the old testament different from the various sins listed in the old testament. I'm not sure of the difference?
doesn't the old testament have many different prophecies about the future. How does that prove something?
wasn't the bible predicting the return of jesus and the end times to occur soon after his death?
btw - I'm sure that parts of it were written "bc" but of course we know it was translated/mistranslated, redacted, etc.. thousands of times after jesus died so I'm just not follow the "proof of christ" part but I guess one has to fill in those parts with faith (at least I assume that to be the case)
edit: aren't many of the old testament prophecies somehow claimed to be validated by books of the new testament written years after his death.