Monica asked an excellent question about how to correct someone who posts something objectionable on a public forum. I was struck by the suggestion that the usual course of action was "to take the person aside for a private conversation". That's sensible advice and (once you hear it) maybe a bit obvious. But it's also what we Christians are commanded to do.
So I got to wondering: Is this a case of convergent evolution (so to speak) or is this model of reconciliation found in the Tanach? Or would the early Christians have heard it from their rabbis?