What about the belief of Jehovah's Witnesses that injecting alcohol into your blood stream is the same as drinking it. In other words if your doctor told you to abstain from alcohol, does that mean you can inject it directly into your veins?
Critics say their sense of logic is flawed. Alcohol is not essential for human life. It does not replace blood. We are not born with alcohol in our body. Blood is different. We are born with it and require it for life. It is essential. Alcohol is not. Drinking alcohol to excess is not healthy. Obviously putting it directly into your blood stream by injection is not healthy either.
Since Jehovah's Witnesses agree that life is sacred and the Bible tells us to respect human life, injecting blood into a person to save their life is far different than injecting alcohol or a poison into someone's veins. Blood belongs in our veins. Alcohol does not.
Perhaps this is a better question to ask.
Jesus recognized the limitations of the Mosaic code and why loving people was far more important than keeping the letter of the law.