No obligation to justice does force a man to be cruel, or to use the sharpest sentence.
Civilization is maintained by a very few people in a small number of places and we need only some bombs and a few prisons to blot it out altogether.
And while God had work for Paul, he found him friends both in court and prison. Let persecutors send saints to prison, God can provide a keeper for their turn.
The only effect of public punishment is to show the rabble how bravely it can be borne; and that every one who hath lost a toe-nail hath suffered worse.