Since no “good” can come from the death penalty, the motives for doing so must be from a different position than justice because the end purpose of justice is the “common good” (which is where the justification of the death penalty through social protection comes in). The death penalty is used in social protection, not as a punishment, but as a means to protect society.
You are only speaking of the errors of PJPII and 2267, as opposed to nearly 2000 years of Catholic biblical, theological, rational and tradtional teachings, which oddly enough is verified through sections 2258-2266 of the Catechism.
Review of: 2258-2267, ARTICLE 5, THE FIFTH COMMANDMENT of the “Catechism of the Catholic Church”: PART THREE: LIFE IN CHRIST, SECTION TWO: THE TEN COMMANDMENTS, CHAPTER TWO: “YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF”, The Roman Catholic Church. Most recent amendments, 2005
vatican.va/archive/ENG0015/__P7Z.HTM
All Catechism text begins with the paragraph number. All else are my comments.
The biblical foundation for the death penalty is found in Genesis 9:5-6 and is based, specifically, upon “shedding blood”.
2260: “For your lifeblood I will surely require a reckoning… Whoever sheds the blood of man, by man shall his blood be shed; for God made man in his own image.” “This teaching remains necessary for all time.”
2265: “Legitimate defense can be not only a right but a grave duty for someone responsible for another’s life. Preserving the common good requires rendering the unjust aggressor unable to inflict harm.”
Both secular and religious governments are responsible for defending the lives of their citizens. “The common good” “requires” that an unjust aggressor be rendered “unable to inflict harm”.
The definitions of “require” and “unable” are clear in meaning and in context.
It is a rational truism that only dead murderers are “unable to inflict harm”. Unable to inflict harm is the same as impossible to inflict harm, only possible by the absolute incapacitation of the aggressor - by definition, the death penalty.
2266: “The State’s effort to contain the spread of behaviors injurious to human rights and the fundamental rules of civil coexistence corresponds to the requirement of watching over the common good.”
The “common good” “requires” an unjust aggressor be rendered “unable to inflict harm.” 2265
2266: “Legitimate public authority has the right and duty to inflict penalties commensurate with the gravity of the crime.”
Biblically, theologically, traditionally and rationally, the death penalty is “commensurate with the gravity of the crime” of murder. There are numerous passages within the New and Old Testaments where the imposition of the death penalty, in the Words of God, Jesus, or in the context of the Holy Spirit, are mandatory, proportional and/or commensurate and to be imposed by the civil authorities. In addition, the works of biblical scholars and theologians through 2010 provide a foundation of death penalty support which, in breadth and depth, overwhelms the writings which might conflict with that support (Reference 2, below).
2266: “The primary scope of the penalty is to redress the disorder caused by the offense. When his punishment is voluntarily accepted by the offender, it takes on the value of expiation.”
The Catechism states: “The primary scope of the penalty is to redress the disorder caused by the offense.” 2266 This is a specific reference to justice, just retribution, just deserts and the like, all of which redress the disorder.
Some have complained that this newest version of the Catechism has removed retribution, justice and the like from sanction. I don’t think that has occurred. Genesis 9:5-6 deals specifically with retribution, as well as balance, and how they are both integral to justice, just as redress does. Both 2260 and 2266 also have texts specifically inclusive of retributive justice. The problem is with 2267, which does away with balance, redress, retribution and justice and is in conflict with 2258-2266.
We must first recognize the guilt/sin/crime of the aggressor and hold them accountable for that crime/sin/disorder by way of penalty, meaning the penalty should be just and appropriate for the sin/crime/disorder and should represent justice, retributive justice, just deserts and their like which “redress the disorder caused by the offence” or to correct an imbalance, as defined within the example “If anyone sheds the blood of man, by man shall his blood be shed.”
To “redress the disorder” has various relevant meanings – to make amends, to correct the balance, to set right, to remedy or to rectify, even reform, all of which may be used in the context of justice, just retribution or just deserts (and similar concepts), all of which have relevance in the context of the religious.