JW's refuse blood transfusions and say that it is sin. They will even refuse to allow their loved ones who are dying to take blood transfusion. This false teaching has actually killed many Jehovah's Witnesses whom Christ died and gave HIS blood to save.
The “BTD” references Lev. 17:14 "You must not EAT the blood..." To EAT means to put it in your mouth as food. In Mark 2:23-3:6 we see Jesus BREAKING the Law by healing a man on the Sabbath. In 3:4 Jesus says "Is it lawful on the Sabbath to do good or to do evil, to save life or to kill? And when He had looked around at them WITH ANGER. being grieved by the hardness of their hearts..." (then He healed the man)
God gave us the Law to SAVE Life, not to kill.
In the "BTD" reference Is made to Mrk 8:35-36 and says "Putting ones life ahead of God's LAW is fatal" Yet, this Bible verse says nothing about the LAW.
For whosoever will save his life shall lose it; but whosoever shall lose his life for my sake and the gospel's, the same shall save it.  For what shall it profit a man, if he shall gain the whole world, and lose his own soul?
Verses 34-38 'in context is actually saying that we should not be ashamed of Jesus. What IS fatal is to deny Jesus for the sake of gain or even our lives. Would you care to read this text in its entirety and see how they came to their conclusion?
The “BTD" also references Mrk. 12:33 and quotes “Obedience is better than sacrifice". But, in fact, the verse is NOT saying “Obedience is better than sacrifice”! This scripture actually says "to LOVE God and one's neighbor.. is worth far more than all the whole burnt offerings and sacrifices”.
I find it amazing that in the blindness of the Pharisaical Watchtower, that they have seen this scripture, which is telling us that “LOVE” is greater than offerings and sacrifices, the same love that would say “Give my child the blood she needs to live” and turn it into “Obedience” to the letter of the LAW and letting our children die!
Watchtower…. YOU'RE a Pharisee, and a murderer! The blood of the innocent are upon your hands!
Jesus broke the LAW to HEAL a man. Jesus came to save lives, not to kill. Open your hearts and listen to what the spirit is saying and don't be Like the Pharisees who would let a person die rather than give him the blood he needs to live.
Gal. 5:14 "the ENTIRE LAW stands fulfilled in one saying namely: you must LOVE your neighbor as yourself.”
Rom. 13:10 "Love does no harm to a neighbor; therefore LOVE is the fulfillment of the LAW"