“And he answered, and told them, Elias verely commeth first, and restoreth al things, and how it is written of the Sonne of man, that he must suffer many things, and be set at nought.”
1611 King James Version (KJV)
9:12 Elijah verily coming first restoreth all things: and how it is written - That is, And he told them how it is written - As if he had said, Elijah's coming is not inconsistent with my suffering. He is come: yet I shall suffer. The first part of the verse answers their question concerning Elijah; the second refutes their error concerning the Messiah's continuing for ever.