Srimad-Bhagavatam: Canto 1 - Chapter 1 - Verse 20
अवतारे षोडशमे पश्यन् ब्रह्मद्रुहो नृपान् ।त्रि:सप्तकृत्व: कुपितो नि:क्षत्रामकरोन्महीम् ॥ २० ॥
avatāre ṣoḍaśamepaśyan brahma-druho nṛpāntriḥ-sapta-kṛtvaḥ kupitoniḥ-kṣatrām akaron mahīm
In the sixteenth incarnation of the Godhead, the Lord [as Bhṛgupati] annihilated the administrative class [kṣatriyas] twenty-one times, being angry with them because of their rebellion against the brāhmaṇas [the intelligent class].
The kṣatriyas, or the administrative class of men, are expected to rule the planet by the direction of the intelligent class of men, who give direction to the rulers in terms of the standard śāstras, or the books of revealed knowledge. The rulers carry on the administration according to that direction. Whenever there is disobedience on the part of the kṣatriyas, or the administrative class, against the orders of the learned and intelligent brāhmaṇas, the administrators are removed by force from the posts, and arrangement is made for better administration.