There are so many statements, "Krsna is the Supreme Personality of Godhead." So anyone who is actually serious about understanding about the Supreme Personality of Godhead, there is no difficulty. But because we are obstinate, because we are sinful, because we are lowest of the mankind, because our knowledge has been taken away by maya, and because we are atheists, we do not accept Krsna as the Supreme Personality. Otherwise, there is no reason.
Lecture on Bhagavad-gita 2.1, Ahmedabad, December 7, 1972