A prophetic warning from Martyn Lloyd-Jones, preaching out of 2 Peter 2:1-3:
To me, one of the saddest features, even of modern religious life, is the tendency to estimate truth in terms of results, popularity, crowds, movements. It is an utter denial of the biblical teaching. You cannot estimate spiritual truth by polls; the counting of heads is not a biblical way of discovering whether teaching is right or wrong. You do not take a census and ask people to fill in certain details. ‘To the law and the testimony’! Popularity and numbers are a very false test of truth.
– Expository Sermons on 2 Peter, pp. 127-128.