One verse

Srimad Bhagavatam 4.14.18

4.14.18

यस्य राष्ट्रे पुरे चैव भगवान् यज्ञपूरुष: । इज्यते स्वेन धर्मेण जनैर्वर्णाश्रमान्वितै: ॥ १८ ॥

yasya rastre pure caiva bhagavan yajna-purusah ijyate svena dharmena janair varnasramanvitaih

yasya
whose
rastre
in the state or kingdom
pure
in the cities
ca
also
eva
certainly
bhagavan
the Supreme Personality of Godhead
yajna-purusah
who is the enjoyer of all sacrifices
ijyate
is worshiped
svena
their own
dharmena
by occupation
janaih
by the people
varna-asrama
the system of eight social orders
anvitaih
who follow.

The king is supposed to be pious in whose state and cities the general populace strictly observes the system of eight social orders of varna and asrama, and where all citizens engage in worshiping the Supreme Personality of Godhead by their particular occupations.