There are different translations of this commandment; the Hebrew words are translated either as "thou shalt not kill" or "thou shalt not murder". Older Protestant translations of the Bible, those based on the Vulgate and Roman Catholic translations usually translate it "Thou shalt not kill". The Catholic Church believes that endangerment of human life or safety is a mortal sin that breaks The Fifth Commandment. Furthermore, the Catholic Church does not believe in a difference between murder and manslaughter the way the law does. With the exceptions of killing in self-defense (a form of manslaughter in many nations' laws) and killing in war, the Catholic Church believes all other forms of killing or attempting to kill violate The Fifth Commandment. Unsafe driving could also lead to unintentional killing. Jewish and newer Protestant versions tend to use "You shall not murder". There are different opinions as to which translation is more faithful to the original.