Krsna says, jnanam te 'ham sa-vijanam: [Bg. 7.2] "I'll speak to you about jnana." Everyone is in ajnana and falsely thinking that he is some very important person. This is ajnana. Real jnana, as will be explained here, is to receive from Krsna. So Krsna is giving knowledge in the Bhagavad-gita. He'll speak in later chapters that "The real jnana is to surrender unto Me." This is real jnana.
Lecture on Bhagavad-gita 7.2, Nairobi, 28 October, 1975