BG 9.21

When they have thus enjoyed vast heavenly sense pleasure and the results of their pious activities are exhausted, they return to this mortal planet again. Thus those who seek sense enjoyment by adhering to the principles of the three Vedas achieve only repeated birth and death.

9.21. Having enjoyed that vast world of heaven, they, when their merit is exhausted, enter the world of the mortals. Thus the persons, who long for pleasure and continuously take refuge in the code of conduct prescribed by the Three Vedas, attain the state of going and coming.

9.21 Yet although they enjoy the spacious glories of Paradise, nevertheless, when their merit is exhausted, they are born again into this world of mortals. They have followed the letter of the scriptures, yet because they have sought but to fulfill their own desires, they must depart and return again and again.

9.20-21 Traividyah etc. Te tam etc. Of course, they worship Me (Vasudeva) alone. However, the action [like sacrifice] is limited (or is known [to them]) by their aspiration for heaven only. Hence, on account of the weakness is their own being (sattva), they condition the action solely by the result of the heaven. That is why their religious act leads to rirth and thus they attain the state of going and coming. But [on that account] it is not the inherent nature of the sacrifice to beget rirth. For instance :

9.21 After enjoying the spacious world of heaven, they return to the world of mortals when the meritorious Karma forming the cause of that experience is exhausted. Thus, lacking in the knowledge established in the Vedanta and desiring only the attainment of heaven etc., they who follow the teaching of the three Vedas on sacrificial rites, come and go. After enjoying the trifling and transient pleasures of heaven, they return to Samsara again and again. But the great souls meditating on Me, who am incomparably dear to them, attain boundless and unsurpassed bliss and do not return to Samsara. Sri Krsna desribes their distinguishing features:

9.21 Bhuktva, after having enjoyed; tam, that: visalam, vast; svargalokam, heavenly world; te, they; visanti, enter into; this martyalokam, human world; ksine, on the exhaustion; of their punye, merit. Evam, thus, indeed; anuprapannah, those who follow in the manner described; trai-dharmyam, [A variant reading is trayi-dharmam.-Tr.] the rites and duties prescribed in the three Vedas-merely the Vedic rites and duties; and are kama-kamah, desirous of pleasures; labhante, attain; only gata-agatam, the state of going and returning, but never that of independence. This is the meaning.

9.21 Having enjoyed the spacious world of heaven, they return to the world of mortals their merit is exhausted. Thus, those who follow the Vedic rituals and are drawn by desires, come and go.

9.21 After having enjoyed that vast heavenly world, they enter into the human world on the exhaustion of their merit. Thus, those who follow the rites and duties prescribed in the three Vedas, and are desirous of pleasures, attain the state of going and returning.