One verse

Bhagavad Gita 4.40

4.40

अज्ञश्चाश्रद्दधानश्च संशयात्मा विनश्यति | नायं लोकोऽस्ति न परो न सुखं संशयात्मनः ||४-४०||

ajñaścāśraddadhānaśca saṃśayātmā vinaśyati . nāyaṃ loko.asti na paro na sukhaṃ saṃśayātmanaḥ ||4-40||

ajñaḥ
a fool who has no knowledge in standard scriptures
ca
and
aśraddadhānaḥ
without faith in revealed scriptures
ca
also
saṁśaya
of doubts
ātmā
a person
vinaśyati
falls back
na
never
ayam
in this
lokaḥ
world
asti
there is
na
nor
paraḥ
in the next life
na
not
sukham
happiness
saṁśaya
doubtful
ātmanaḥ
of the person

But ignorant and faithless persons who doubt the revealed scriptures do not attain God consciousness; they fall down. For the doubting soul there is happiness neither in this world nor in the next.