You are right, unless either of us are judges, in which case we do pass sentence on matters of public law.
All I am saying is that a “Christian” nation ought to base its law on Divine Law or risk the reaping of Wrath the sowing of injustice necessarily compels.
The core of our laws are based upon divine law. If we start stoning people to death that is a perversion of Christianity and Christ will harshly judge that society or individuals that perpetrate it. History is loaded with these type of abuses and those who perpetrated this kind of divine justice you advocate met horrific ends to their lives.