But, having demonstrated our complete incompetence in this matter, we cannot then complain when the secular state mandates basic standards of competence for us, or try to claim that we should not be subject to such basic standards. That would amount to saying that we should be allowed to go on being incompetent, with children and vulnerable people paying the price for our privilege. The lack of basic compassion or human decency in such a claim would be breathtaking, and quite rightly provoke outrage from the wider community.
I guess part of this is the point.
Church law and secular law should be compatible, because God's Law is the Authority. When Christians begin such discussion out come the cries against theocracy, and rightfully so in some to many respects.
This compatibility will not work, for example, for those like some on this thread who want to define their own morality.
Now, when Rome claims to itself the authority it says it has, it oversteps IMO and in that of many others. In the NT there is warrant for Christians to bring charges against Church leadership per 1 Timothy 5:19. No one is above God's Law.
In Romans 13, again, God's standard of good and evil is the standard for secular powers who have the sword. As I said, since the Church does not carry the power for certain criminal punishment, then it seems the Church should be handing certain criminals over to the state for punishment.
Back to the ones in the pews: All Christians are responsible for learning about sin, which is lawlessness. We have a process outlined in Matt 18 for presenting claims to a fellow Christian who has committed lawlessness against us. It escalates to taking 2 or more witnesses if we are at first rejected. It escalates to taking it to the congregational judiciary if still rejected and the judgment of the judiciary to be final. The verse about the gathering of two or more witnesses having the Lord's attendance in the matter is in this context.
Paul rebukes Christians in 1 Corinthians 6 for treating the matter of having a competent congregational judiciary lightly.
According to Paul in Galatians 6, the identifier of being "spiritual," which is one of the ways Paul identifies the mature in Christ vs. the infants in Christ, is to be able to identify any sin/lawlessness, and to assist the sinner out of such. It is these mature ones who are able to "fulfill the Law of Christ."
In Hebrews 5, the mature is identified as having become learned in the "Word of Righteousness" and having faculties well exercised in discerning/judging both good and bad.
In Leviticus 19:18, the context for the second great commandment to love neighbor as self, is rebuke for being out of line with God while not taking personal vengeance. So, love neighbor is assisting neighbor to not be in lawlessness. Which pretty much compares to the Galatians 6 fulfilling the "Law of Christ" by identifying and assisting others who are in lawlessness/sin.
Judging per Jesus Christ was to be done cautiously and learnedly beginning with self judgment. The "do not judge" is normally taken out of context and then goes against all of what I've just identified.
There are checks and balances in all of this all the way up to bringing charges against congregational leadership. No one is above God's Law correctly understood and applied.
There's no room for people to be developing their own morality. There also seems to be little to no warrant for the Church to handle certain offenses beyond a point and certainly not to bury them. It seems it can and should judge, but certain convictions it seems should be outsourced for punishment beyond the excommunication the Church can do.
The point about having the secular involved in regulating the Church is understood, but with the secular developing its own standards apart from and in contradiction to God, I don't see how this works at all. Apart from all having the same standards, the best there can be is tensions in and suspicions in compromise.