Mbh 5.60.1a

Vaisampayana said, “Having heard these words of Sanjaya, the monarch endued with the eye of wisdom, took that speech into his consideration as regards its merits and demerits. And having counted in detail the merits and demerits as far as he could, and having exactly ascertained the strength and weakness of both parties, the learned and intelligent king, ever desirous of victory to his sons, then began to compare the powers of both sides. And having at last ascertained that the Pandavas were endued with strength and energy both human and divine, and that the Kurus were much weaker Dhritarashtra said unto Duryodhana, “This anxiety, O Duryodhana, always filleth me. Indeed, it doth not leave me. Truly, it seemeth that I behold it with my eye. This conviction is not a matter of inference. All created beings show great affection for their offsprings, and do, to the best of their power, what is agreeable and beneficial to them. This is generally to be seen also in the case of benefactors. They that are good always desire to return the good done to them and to do what is highly agreeable to their benefactors. Remembering what was done to him to Khandava, Agni will, no doubt, render aid to Arjuna in this terrible encounter between the Kurus and the Pandavas. And from parental affection, Dharma, and other celestials duly invoked, will come together to the aid of the Pandavas. I think that to save them from Bhishma and Drona and Kripa, the celestials will be filled with wrath, resembling the thunderbolt in its effects. Endued with energy and well-versed in the use of weapons, those tigers among men, the sons of Pritha, when united with the celestials, will be incapable of being even gazed upon by human warriors.