One verse

Srimad Bhagavatam 5.6.11

5.6.11

ते च ह्यर्वाक्तनया निजलोकयात्रयान्धपरम्परयाऽऽश्वस्तास्तमस्यन्धे स्वयमेव प्रपतिष्यन्ति ॥ ११ ॥

te ca hy arvaktanaya nija-loka-yatrayandha-paramparayasvastas tamasy andhe svayam eva prapatisyanti.

te
those people not following the Vedic principles
ca
and
hi
certainly
arvaktanaya
deviating from the eternal principles of Vedic religion
nija-loka-yatraya
by a practice arrived at by their own mental concoction
andha-paramparaya
by a disciplic succession of blind, ignorant people
asvastah
being encouraged
tamasi
into the darkness of ignorance
andhe
blindness
svayam eva
themselves
prapatisyanti
will fall down

Low-class people, due to their gross ignorance, introduce a system of religion that deviates from the Vedic principles. Following their own mental concoctions, they automatically fall down into the darkest regions of existence.