Prabhupāda: There is a valuable jewel stone. If you turn, you will find many colorful manifestations, although that stone is one. Similarly, although God is one, He can manifest Himself in many forms. That is the prerogative of God. Goloka eva nivasaty akhilātma-bhūtaḥ (Bs. 5.37). He can expand Himself in millions and trillions of forms; still, He is one. The same example: that vaidurya stone, jewel, although one, but you will find it in many colors at the same time. So this example is very nice. Go on.
Madhudviṣa: "...although His multiforms are understood by the pure unalloyed devotees but not by the simple study of the Vedas. Devotees like Arjuna are constant companions of the Lord, and whenever the Lord incarnates, the associate devotees also incarnate in order to serve the Lord in different capacities. Arjuna is one of these devotees, and in this verse it is understood that when Lord Kṛṣṇa spoke the Bhagavad-gītā to the sun-god Vivasvān, Arjuna in a different capacity was also present there some millions of years before. But the difference between the Lord and Arjuna is that the Lord remembered the incident whereas Arjuna could not remember. That is the difference between the part and parcel living entity and the Supreme Personality of Godhead."
Prabhupāda: Yes. Here is... Nowadays there are many gods. Especially anyone comes from India in the name of so many saintly persons, and they claim that they are gods. Everyone says, "I am God." Or somebody says that "Everyone is God." But here is the difference between God and ordinary living entity. What is that? God does not forget and we forget.
If I ask you just exactly at this time what you were doing last evening, you will have to remember. You have forgotten. And what to speak of one week ago or one year ago? That is our nature, forgetfulness.
So here Arjuna and Kṛṣṇa, although they are on the level of friendship, one is God and another is ordinary living entity. God does not forget; living entity forgets. That is the distinction. How you can say that you are God? You are so forgetful that you cannot say what you were doing a few hours before, and you claiming that you are God? They have made God as very cheap thing. Everyone is claiming, "I am God." They do not know what is God.