na brahmanan me dayitam
rupam etac catur-bhujam
sarva-deva-mayo hy aham
Even My own four-armed form is no dearer to Me than a brahmana. Within himself a learned brahmana comprises all the Vedas, just as within Myself I comprise all the demigods.
It is understood from the Vedic science of epistemology, the Nyaya-sastra, that knowledge of an object (prameya) depends on a valid means of knowing (pramana). The Supreme Personality of Godhead can be known only by means of the Vedas, and thus He relies on the brahmana sages, who are the Vedas personified, to reveal Him in this world. Even though Lord Krsna embodies all the demigods and visnu-tattva expansions of Narayana, He considers Himself obliged to the brahmanas.