But it is you who feels the state can play God.
Wow…that’s quite a claim. You think that the state implementing the death penalty is “playing God?” Well, let’s see who you’re
really referring to…
Innocent I:
“It must be remembered that power was granted by God [to the magistrates], and to avenge crime by the sword was permitted. He who carries out this vengeance is God’s minister (Rm 13:1-4).
Why should we condemn a practice that all hold to be permitted by God? We uphold, therefore, what has been observed until now, in order not to alter the discipline and so that we may not appear to act contrary to God’s authority.”
Innocent III:
“The secular power can without mortal sin carry out a sentence of death, provided it proceeds in imposing the penalty not from hatred but with judgment, not carelessly but with due solicitude.”
Pius XII:
“Even in the case of the death penalty the State does not dispose of the individual’s right to life. Rather public authority limits itself to depriving the offender of the good of life in expiation for his guilt, after he, through his crime, deprived himself of his own right to life.”
St. Augustine:
"The same divine authority that forbids the killing of a human being establishes certain exceptions, as when God authorizes killing by a general law or when He gives an explicit commission to an individual for a limited time.
“The agent who executes the killing does not commit homicide; he is an instrument as is the sword with which he cuts. Therefore, it is in no way contrary to the commandment, ‘Thou shalt not kill’ to wage war at God’s bidding, or for the representatives of public authority to put criminals to death, according to the law, that is, the will of the most just reason.”
St. Thomas Aquinas:
"It is written: “Wizards thou shalt not suffer to live” (Ex. 22:18); and: “In the morning I put to death all the wicked of the land” (Ps. 100:8). …
Every part is directed to the whole, as imperfect to perfect, wherefore every part exists naturally for the sake of the whole. For this reason we see that if the health of the whole human body demands the excision of a member, because it became putrid or infectious to the other members, it would be both praiseworthy and healthful to have it cut away. Now every individual person is related to the entire society as a part to the whole. Therefore if a man be dangerous and infectious to the community, on account of some sin, it is praiseworthy and healthful that he be killed in order to safeguard the common good, since “a little leaven corrupteth the whole lump” (1 Cor. 5:6).”
"The fact that the evil ones, as long as they live, can be corrected from their errors does not prohibit that they may be justly executed, for the danger which threatens from their way of life is greater and more certain than the good which may be expected from their improvement.
They also have at that critical point of death the opportunity to be converted to God through repentance. And if they are so obstinate that even at the point of death their heart does not draw back from malice, it is possible to make a quite probable judgment that they would never come away from evil.”"
The Council of Trent:
"The power of life and death is permitted to certain civil magistrates because theirs is the responsibility under law to punish the guilty and protect the innocent. Far from being guilty of breaking this commandment [Thy shall not kill], such an execution of justice is precisely an act of obedience to it. For the purpose of the law is to protect and foster human life. This purpose is fulfilled when the legitimate authority of the State is exercised by taking the guilty lives of those who have taken innocent lives.
In the Psalms we find a vindication of this right: “Morning by morning I will destroy all the wicked in the land, cutting off all evildoers from the city of the Lord” (Ps. 101:8)."
You cannot, in your right mind, deny that the Traditional teaching of the Church has always been that the death penalty is just and permissible. You seem to deny that it is. Well, perhaps you should be reminded of this
infallible statement from Vatican Council I:
“Moreover, by divine and Catholic faith everything
must be believed that is contained in the written word of God
or in tradition, and that is proposed by the Church as a divinely revealed object of belief either in a solemn decree or in her ordinary, universal magisterium.”
I follow the Church’s interpretation of this dogma. You follow what you believe it to be. This is, I’m sorry to say, nothing other than private interpretation.