Why do Jehovah Witnesses not accept blood?

Why do Jehovah Witnesses not accept blood? Jehovah’s Witnesses believe that a human must not sustain his life with another creature’s blood, and they recognize no distinction “between taking blood into the mouth and taking it into the blood vessels.” It is their deep-seated religious conviction that Jehovah will turn his back on anyone who receives blood

Jehovah’s Witnesses believe that a human must not sustain his life with another creature’s blood, and they recognize no distinction “between taking blood into the mouth and taking it into the blood vessels.” It is their deep-seated religious conviction that Jehovah will turn his back on anyone who receives blood