SB 12.3.38

śūdrāḥ pratigrahīṣyanti
dharmaṁ vakṣyanty adharma-jñā
śūdrāḥ — lowly, common workers; pratigrahīṣyanti — will accept religious charity; tapaḥ — by shows of austerity; veṣa — and by dressing as mendicants; upajīvinaḥ — earning their living; dharmam — the principles of religion; vakṣyanti — will speak about; adharma-jñāḥ — those who know nothing about religion; adhiruhya — mounting; uttama-āsanam — a high seat.
Uncultured men will accept charity on behalf of the Lord and will earn their livelihood by making a show of austerity and wearing a mendicant’s dress. Those who know nothing about religion will mount a high seat and presume to speak on religious principles.

The epidemic of bogus gurus, swamis, priests and so forth is explicitly described here.