Mark 9:11

9As they were coming down from the mountain, he commanded them that they should tell no one what things they had seen, until after the Son of Man had risen from the dead.

10They kept this saying to themselves, questioning what the “rising from the dead” meant.

11They asked him, saying, “Why do the scribes say that Elijah must come first?”

12He said to them, “Elijah indeed comes first, and restores all things. How is it written about the Son of Man, that he should suffer many things and be despised?

13But I tell you that Elijah has come, and they have also done to him whatever they wanted to, even as it is written about him.”