Mark 9:11

And they were asking Him, saying, "How is it that the scribes say that Elijah must first come?"

and, if ye are willing to receive it, he is Elijah who is about to come.

And there appeared to them Elijah with Moses; and they were talking with Jesus.

And His disciples asked Him, saying, "Why, then, do the scribes say that Elijah must come first?"

Treasury of Scripture Knowledge

And they asked him, saying, Why say the scribes that Elias must first come?

And there appeared to them Elijah with Moses; and they were talking with Jesus.

and, if ye are willing to receive it, he is Elijah who is about to come.

And His disciples asked Him, saying, "Why, then, do the scribes say that Elijah must come first?"