Matthew 17:9-13

9As they were coming down the mountain, Jesus commanded them, “Don’t tell anyone about the vision until the Son of Man is raised from the dead.”

10So the disciples asked him, “Why then do the scribes say that Elijah must come first?”

11“Elijah is coming and will restore everything,” he replied.

12“But I tell you: Elijah has already come, and they didn’t recognize him. On the contrary, they did whatever they pleased to him. In the same way the Son of Man is going to suffer at their hands.”

13Then the disciples understood that he had spoken to them about John the Baptist.