Jesus, if you believe the Bible.”If he won’t listen to the church, treat him as a pagan or tax collector.”
http://www.catholic.com/tracts/proving-inspiration
"Jesus, if you believe the Bible.If he wont listen to the church, treat him as a pagan or tax collector. http://www.catholic.com/tracts/proving-inspiration"
IOWs, the Church says so. Jesus did not say the Church was infallible, nor would He ever endorse such a claim. Your partial quote left out the fact that "the church" spoken of, would be simply deciding to back the some accuser. If what you say is true, then infallibility can be found in democratic action and that proposition is ridiculous.
Also note that proof only applies in mathematics. only evidence applies in all other cases.