One verse

Bhagavad Gita 18.55

18.55

भक्त्या मामभिजानाति यावान्यश्चास्मि तत्त्वतः | ततो मां तत्त्वतो ज्ञात्वा विशते तदनन्तरम् ||१८-५५||

bhaktyā māmabhijānāti yāvānyaścāsmi tattvataḥ . tato māṃ tattvato jñātvā viśate tadanantaram ||18-55||

bhaktyā
by pure devotional service
mām
Me
abhijānāti
one can know
yāvān
as much as
yaḥ ca asmi
as I am
tattvataḥ
in truth
tataḥ
thereafter
mām
Me
tattvataḥ
in truth
jñātvā
knowing
viśate
he enters
tat-anantaram
thereafter

One can understand Me as I am, as the Supreme Personality of Godhead, only by devotional service. And when one is in full consciousness of Me by such devotion, he can enter into the kingdom of God.