Perhaps the ancestral teachers thought it was so rare to find someone who could teach by his or her life’s example that if we just wait for someone like that to come along, we might miss the chance to benefit from the teachings that are available now.
Hence no need for an assertion of “inerrancy” and “infallibility” in order to ascertain and appropriate the written truths of any ancient teachings into one’s life so as to receive a benefit by them.
