Bhagavad Gita Chapter 9.3
aśraddadhānāḥ puruṣā
dharmasyāsya paran-tapa
aprāpya māḿ nivartante
mṛtyu-saḿsāra-vartmani
Translation
Those who are not faithful in this devotional service cannot attain Me, O conqueror of enemies. Therefore they return to the path of birth and death in this material world.