Mbh 5.59.2b

Sitting up erect like Indra’s banner, adorned with every ornament, and resembling Indra himself in energy, Krishna then addressed me. And the words which that best of speakers said were sweet, charming and mild, though awful and alarming to the son of Dhritarashtra. Indeed, the words uttered by Krishna, who alone is fit to speak, were of correct emphasis and accent, and pregnant with meaning, though heart-rending in the end. And Vasudeva said, “O Sanjaya, say thou these words unto the wise Dhritarashtra and in the hearing of that foremost of the Kurus, Bhishma, and also of Drona, having first saluted at our request, O Suta, all the aged ones and having enquired after the welfare of the younger ones, ‘Do ye celebrate diverse sacrifices, making presents unto the Brahmanas, and rejoice with your sons and wives, for a great danger threatens ye? Do ye give away wealth unto deserving persons, beget desirable sons, and do agreeable offices to those that are dear to thee, for king Yudhishthira is eager for victory?’” While I was at a distance, Krishna with tears addressing me said, “That debt, accumulating with time, hath not yet been paid off by me. Ye have provoked hostilities with that Savyasachin, who hath for his bow the invincible Gandiva, of fiery energy, and who hath me for his helpmate. Who, even if he were Purandara himself, would challenge Partha having me for his help-mate, unless, of course, his span of life were full? He that is capable of vanquishing Arjuna in battle is, indeed, able to uphold the Earth with his two arms, to consume all created things in anger and hurl the celestials from Heaven. Among the celestials, Asuras, and men, among Yakshas, Gandharvas, and Nagas, I do not find the person that can encounter Arjuna in battle. That wonderful story which is heard of an encounter in the city of Virata between a single person on one side and innumerable warriors on the other, is sufficient proof of this.