One verse

Bhagavad Gita 4.12

4.12

काङ्क्षन्तः कर्मणां सिद्धिं यजन्त इह देवताः | क्षिप्रं हि मानुषे लोके सिद्धिर्भवति कर्मजा ||४-१२||

kāṅkṣantaḥ karmaṇāṃ siddhiṃ yajanta iha devatāḥ . kṣipraṃ hi mānuṣe loke siddhirbhavati karmajā ||4-12||

kāṅkṣantaḥ
desiring
karmaṇām
of fruitive activities
siddhim
perfection
yajante
they worship by sacrifices
iha
in the material world
devatāḥ
the demigods
kṣipram
very quickly
hi
certainly
mānuṣe
in human society
loke
within this world
siddhiḥ
success
bhavati
comes
karma-jā
from fruitive work

Men in this world desire success in fruitive activities, and therefore they worship the demigods. Quickly, of course, men get results from fruitive work in this world.