“In that hall of the dice game, too, many injustices were done to the Pandavas; yet they did not let go of Dharma.”
When the desire to destroy the unrighteousness (Adharma) that has spread through society, and to establish Dharma, takes birth in the heart of every person; when sin reaches a certain limit, then, to protect Dharma, God does indeed work wonders, my son. And to establish Dharma — when a person renounces both his selfishness and his attachment and stands ready for sacrifice, then all creation fills with wonders. It was because of the sacrifices of my mother Devaki and my mother Yashoda that the miracle came to pass in that prison cell, Vats.
I am speaking the truth, am I not, my friend (sakhi)?
Chapter 31 of 35 — a single teaching, 3 min in total.
For a text of its scale the Mahabharat is sparing with divine rescue. People die who could have been saved, and the war is not prevented by anyone who could plainly have prevented it. Krishna's presence is constant and his intervention is almost entirely persuasion.
The famous exception is Draupadi in the assembly, and it is worth noticing what it is an exception to: the room is full of men with the standing to stop what is happening, and none of them does. The epic reserves its one great intervention for the moment human dharma has completely failed.