His disciples asked him. — The context clearly implies that the question came not from the disciples at large, but from the three who had seen the vision, and were brooding over the appearance, and yet more, perhaps, the disappearance, of Elijah, as connected with the tradition of the scribes. If Elijah was to come and prepare the way, why had he thus come from the unseen world for a moment only?
Related Commentaries of Matthew 17:10
Matthew 17:10
10 And his disciples asked him, saying, Why then say the scribes that Elias must first come?