I n reading the posts for this thread I find that when discussing the Church’s present day teaching on the death penalty, there hasn’t been a real discussion on the reason for Her statements especially by those of our Pope and John Paul II. It seems the present stand is grounded in the principle of Self Defense as first developed by St Augustine and furthered developed by St Thomas Aquinas.
Simply stated, the State and individuals have the moral right to Self Defense against unjust aggression. However, in exercising this right The State or individual is only allowed to use the force necessary to stop the aggression. In regards to the DP it is hard to justify its use when the aggressive act has been halted and the individual has been put into jail for many years. Deterance is not a justifiable reason for the death penalty, either in the act itself nor seemingly in its effects on present day society (other wise our murder rate wouldn’t be as high as it is). Revenge can never be a justifiable act. Therefore, consistant with the principles of Self Defense we find the Teachings of Popes John Paul II and our Holy Father Benedict XVI saying there may be extreme cases where it could be justified, as a norm it is not.
In regards to the Midle ages especially at the time of the Reformation I think before we discuss this further we really should look into the mind set of the people of that time and not project our 21st thought into theirs. Perhaps after all is said and done most of us would conclude that the use of torture and death wasn’t justified, but I think it is important to study their reasoning first.
Finally, in regards to abortion, if you remember, at the time of Roe vs Wade, one of the arguments given to justify an abortion was that the fetus was an continuation of an aggression either due to the crime of rape or that the women’s right to priviacy was being violated by the developing fetus. I think it is easy to understand how this principle of Self Defense in not applicable in this matter (easy for you and me but for some reason difficult for the majority of learned men on the Surpreme Court at that time).
The underlining principle of all this, even for those who are strict humanist is human life is sacred and we must always preserve life and advoid that which may harm or destroy life.