11 And they asked him, “Why do the teachers of the law say that Elijah must come first?”

Read Mark 9:11 Using Other Translations

And they asked him, saying, Why say the scribes that Elias must first come?
And they asked him, "Why do the scribes say that first Elijah must come?"
Then they asked him, “Why do the teachers of religious law insist that Elijah must return before the Messiah comes? ”