35 And certain ones of those standing by said, Behold, He is calling Elijah.
Mark 15:35 Cross References - Godbey
Matthew 17:11-13
11 And Jesus responding said to them, Elijah indeed comes, and will restore all things:
12 but I say unto you, that Elijah has already come, and they recognized Him not, but did unto Him so many things as they wished; thus the Son of man is also about to suffer by them.
13 Then the disciples understood that He spoke to them concerning John the Baptist.
Matthew 27:47-49
Mark 9:11-13
11 And they asked Him, saying, that the scribes say, that it behooves Elijah first to come.
12 He responding said to them, Elijah indeed having first come, restores all things: and how has it been written in reference to the Son of man, that he should suffer many things, and be set at naught?
13 But I say unto you, that Elijah indeed has come, and they did unto him so many things as they wished, as has been written in reference to him.