Sarva-jña means one who knows everything, past, present, future, everything. He's sa... That is the qualification of the Supreme Lord, sarva-jña. We are not sarva-jña. Even as the most perfect living entity, just like Brahmā, Śiva, they are, they are also not sarva-jña. Sarva-jña is only Viṣṇu, Kṛṣṇa. Kṛṣṇa is sarva-jña. So that is the difference between man and God, or living entity and the Supreme Absolute Personality of Godhead. He knows. He knows.
Here it is distinct... If you have to believe Bhagavad-gītā, then the distinction you have to believe, you have to take. You cannot say that "There is no difference between me and Kṛṣṇa." No, there is difference. Here the difference is clearly explained that "That is the difference between you and Me, that you forget. You cannot remember all the incidences of your life, past, present and future, but I can remember." That is the difference.