The Dark Ages
The initial split between Orthodox Judaism and the followers of Jesus caused a moral dilemma for Jesus` followers and it was determined Christs word had replaced the old Mosaic laws in the OT.
Therefore the punishment regarding Mosaic laws was no longer followed even if the law it pertained to still was.
Christians did not kill, stone or otherwise torture those who did not follow their Gods word.
They saw it as a fundamental difference between them and the old Judaic priests, a large part of the foundation that made them Christians. Even during their own persecution by the Jews and Pagan Romans they went to their unjust often torturous deaths content in their righteousness in the Peace of Jesus.
For 3 centuries or so these Christians lived this way even under penalty of death.
After Constantine organized the church, laid down the canon, and melded the government to the church they became what had persecuted them.
They began systematically punishing heretics who had for the previous 3 centuries followed the word of Jesus as written in the Christian texts.
They started claiming divine inspiration for some texts while they ordered all others burned and their followers killed, excommunicated or tortured into submission.
We know this because some of these texts survived (Nag Hammadi Library).
Letters, diaries Catholic Canon, and correspondence of and between the Orthodoxy and these heretic sects provide ample evidence of the religious persecution and inhumane lengths taken to insure the supremacy of the Orthodox Church.
Alliances made between warlords and the Church entangled religion and politics so tightly they became one and the same.
From here the Church started issuing decrees to entire nations to war against heretics for Orthodox purposes.
Hundreds of thousands were killed.
During the massacre at Beziers against the heretic sect the Albigenses when, the soldiers asked how they could distinguish between heretics and orthodox, the Vatican representative told them.. "Kill them all, God will know his own," and they slaughtered forty thousand men, women and children .
They had not only distorted Christianity through their canon but they used this distorted canon to persecute those who followed Christs word.