One verse

Bhagavad Gita 14.10

14.10

रजस्तमश्चाभिभूय सत्त्वं भवति भारत | रजः सत्त्वं तमश्चैव तमः सत्त्वं रजस्तथा ||१४-१०||

rajastamaścābhibhūya sattvaṃ bhavati bhārata . rajaḥ sattvaṃ tamaścaiva tamaḥ sattvaṃ rajastathā ||14-10||

rajaḥ
the mode of passion
tamaḥ
the mode of ignorance
ca
also
abhibhūya
surpassing
sattvam
the mode of goodness
bhavati
becomes prominent
bhārata
O son of Bharata
rajaḥ
the mode of passion
sattvam
the mode of goodness
tamaḥ
the mode of ignorance
ca
also
eva
like that
tamaḥ
the mode of ignorance
sattvam
the mode of goodness
rajaḥ
the mode of passion
tathā
thus

Sometimes the mode of goodness becomes prominent, defeating the modes of passion and ignorance, O son of Bharata. Sometimes the mode of passion defeats goodness and ignorance, and at other times ignorance defeats goodness and passion. In this way there is always competition for supremacy.