[count-your-change]

I'm sure that as a Catholic you are familiar with terms,
“Sins of Commission” and “Sins of Omission”.

So when the Scriptures say “Remove the wicked man from among yourselves” and that “if he doesn't listen even to the congregation, let him be as a man of the nations and a tax collector” and those in a position to act fail to do so, which sort of sin are they guilty of?

And are they not guilty of sharing in the sins of the unrepentant sinner by failing to act, “Omission”, when they have the power to?

Were you taught anything about these questions?

[Legatus]

And are they not guilty of sharing in the sins of the unrepentant sinner by failing to act, “Omission”, when they have the power to?

Yup. That's one of the reasons the floor of hell is paved with the skulls of bishops... and the road to hell and apparently the lampposts as well, depending on the version of the quote.