Answering the title of the op, the greatest scriptural death penalty case was none other than the condemnation to death of Jesus Christ by the Jews and Pontius Pilate, each thinking they were doing the best for the greater good. And guess what? Jesus Christ was innocent! We condemned an innocent man, who turned out to be God, to death…for what…because we thought we knew better right?
Mind you, the pharisees used scripture to justify the condemnation. They said Jesus Christ comitted blasphemy by claiming to be God and that is punishable by death. Unfortunately his trial was skewed, they chose only what was useful for their agenda and turned a blind eye to all the things Jesus did which indeed proved Him to be Messiah and God, since He did not have the kind of backing that will be like a very good lawyer today, He lost the case, was condemned guilty, tortured, crucified like a thief, and killed, yet innocent.
So I am tired of all this quoting of scripture left and right to justify the death sentence and people making other people look bad for not supporting the death sentence.
As christians, we are called to be merciful to our fellow brothers, even criminals. The society, inorder to protect its citizens has to enforce punishments on criminals, but when it is absolutely not necessary, why support the elective killing of an individual who is in no position of either harming the executioner or the person he inflicted harm on? the death penalty is not self defence, its not like he is pointing a gun at you. He is powerless, yet we as christians are creating hundreds of posts on this very forum trying to justify murder under such circumstances and chose to diabolise a pope who is our leader telling us life and mercy superceede death, reminding us of the very words of Jesus, who even under arrest healed the cut ear of one of those who arrested Him, even under such circumstances, even while on the cross asked His Father to forgive His executioners. Yet we claim we know better and let pride numb our predisposition to mercy.