Mbh 12.237.3c

Indeed, all the Vedas with the duties laid down in them are said to flow from them. Preceptors of the Vedas are of two kinds, viz., those that are conversant with the Soul and those that are otherwise. Of these, the former are superior in consequence of their knowledge of what is meant by Birth and Death.[931] As regards duties, they are, again, of two kinds (viz., Pravritti and Nivritti). He who is conversant with duties is said to be omniscient or possessed of universal knowledge. Such a man is a Renouncer. Such a man is firm in the accomplishment of his purposes. Such a man is truthful, pure (both outwardly and inwardly), and possessed of puissance.[932] The gods know him for a Brahmana who is devoted to knowledge of Brahma (and not him who is conversant with only the duties of Pravritti). Such a man is versed also in the Vedas and earnestly devoted to the study of the Soul.[933] They that have true knowledge behold their own Soul as existing both in and out. Such men, O child, are truly regenerate and such men are gods.[934] Upon these rests this world of Beings, in them dwell this whole universe. There is nothing that is equal to their greatness. Transcending birth and death and distinctions and acts of every kind, they are the lords of the four kinds of creatures and are the equals of the Self-born himself.'"'"[935]