Thereupon the Buddha said to him, “No, no, I will not. If I do, all the gods and men in the world will be frightened and perplexed.”

By the first cease, the Buddha wanted them to cease harboring doubts. Body-son (Śāriputra) said [that the Buddha should] preach and then [they will] cease harboring doubts. Hence, the repeated request. The two words show a vast difference [in what they refer to], and yet they are the same in that they are intended for dispelling men’s doubts.

“You asked me three times with enthusiasm. How can I leave the Dharma unexpounded?

As the Sage sets forth the teaching, his speech must be unfolded gradually; awakening, likewise, is achieved step by step. As the request was made thrice, the doubts of the congregation were both prevalent and lingering; the doubts of the congregation being widely prevalent and lingering, their desire to hear was very intense. The triple request was made not because the Buddha wished it, but because the circumstances of the time [with respect to his listeners] dictated it.