Text 6 

pasyadityan vasun rudran
asvinau marutas tatha
bahuny adrsta-purvani
pasyascaryani bharata

Translation

O best of the Bharatas, see here the different manifestations of Adityas, Vasus, Rudras, Asvini-kumaras and all the other demigods. Behold the many wonderful things which no one has ever seen or heard of before. 

Commentary by Srila Prabhupada 

Even though Arjuna was a personal friend of Krishna and the most advanced of learned men, it was still not possible for him to know everything about Krishna. Here it is stated that humans have neither heard nor known of all these forms and manifestations. Now Krishna reveals these wonderful forms.

Commentary by Sri Visvanatha Cakravarti Thakur

No commentary by Sri Visvanatha Cakravarti Thakur.