Superhuman
Bhagavad-gita As It Is
BG Chapters 1 - 6
BG 4.1, Purport:
Because Bhagavad-gītā is as good as the Vedas, being spoken by the Supreme Personality of Godhead, this knowledge is apauruṣeya, superhuman. Since the Vedic instructions are accepted as they are, without human interpretation, the Gītā must therefore be accepted without mundane interpretation. The mundane wranglers may speculate on the Gītā in their own ways, but that is not Bhagavad-gītā as it is. Therefore, Bhagavad-gītā has to be accepted as it is, from the disciplic succession, and it is described herein that the Lord spoke to the sun-god, the sun-god spoke to his son Manu and Manu spoke to his son Ikṣvāku.