154
Śrīmad-Bhāgavatam
[Canto 5, Ch. 4]
dhāḥ —very pure in their activities;  brāhmaṇāḥ —qualified  brāhmaṇas ;  babhūvuḥ —became.
TRANSLATION
In addition to these nineteen sons mentioned above, there were eighty-one younger ones, all born of Rṣabhadeva and Jayantī. According to the order of their father, they became well cultured, well behaved, very pure in their activities and expert in Vedic knowledge and the performance of Vedic rituals. Thus they all became perfectly qualified  brāhmaṇas .
PURPORT
From this verse we have good information of how the castes are qualified according to quality and work. Rṣabhadeva, a king, was certainly a  kṣatriya . He had a hundred sons, and out of these, ten were engaged as  kṣatriyas  and ruled the planet. Nine sons became good preachers of  Śrīmad-Bhāgavatam  ( mahā-bhāgavatas ), and this indicates that they were above the position of  brāhmaṇas . The other eighty-one sons became highly qualified  brāhmaṇas . These are some practical examples of how one can become fit for a certain type of activity by qualification, not by birth. All the sons of Mahārāja Rṣabhadeva were  kṣatriyas  by birth, but by quality some of them became  kṣatriyas , and some became  brāhmaṇas . Nine became preachers of  Śrīmad-Bhāgavatam  ( bhāgavata-dharma-darśanāḥ ), which means that they were above the categories of  kṣatriya  and  brāhmaṇa .
TEXT 14
भगवानृषभसंज्ञ आत्मतन्त्रः स्वयं नित्यनिवृत्तानर्थपरम्परः 
  केवलानन्दानुभव ईश्वर एव विपरीतवत्कर्माण्यारम्भमाणः कालेनानुगतं 
  धर्ममाचरणेनोपशिक्षयन्नतद्विदां सम उपशान्तो मैत्रः कारुणिको धर्मार्थ- 
  यशःप्रजानन्दामृतावरोधेन गृहेषु लोकं नियमयत् ॥ १४ ॥
bhagavān ṛṣabha-saṁjña ātma-tantraḥ svayaṁ nitya-nivṛttānartha-  
 paramparaḥ kevalānandānubhava īśvara eva viparītavat karmāṇy