Mark 9:11-13

11So they asked him, “Don’t the experts in Moses’ Teachings say that Elijah must come first?”

12Jesus said to them, “Elijah is coming first and will put everything in order again. But in what sense was it written that the Son of Man must suffer a lot and be treated shamefully?

13Indeed, I can guarantee that Elijah has come. Yet, people treated him as they pleased, as Scripture says about him.”