Passage
And he answering said to them, `Elijah indeed, having come first, doth restore all things; and how hath it been written concerning the Son of Man, that many things he may suffer, and be set at nought?
And he answering said to them, `Elijah indeed, having come first, doth restore all things; and how hath it been written concerning the Son of Man, that many things he may suffer, and be set at nought?
Mark 9:10 and the thing they kept to themselves, questioning together what the rising out of the dead is.
Mark 9:11 And they were questioning him, saying, that the scribes say that Elijah it behoveth to come first.
Mark 9:12 And he answering said to them, `Elijah indeed, having come first, doth restore all things; and how hath it been written concerning the Son of Man, that many things he may suffer, and be set at nought?
Mark 9:13 But I say to you, That also Elijah hath come, and they did to him what they willed, as it hath been written of him.'
Mark 9:14 And having come unto the disciples, he saw a great multitude about them, and scribes questioning with them,
The verse centers on "all things", "answering", "said", "elijah", "indeed", "having", "come", and "first". It is saying that the verse draws attention to "all things" and "answering", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 11's "And they were questioning him saying that..." into verse 13's "But I say to you That also...", so "all things" and "answering" belong inside that flow. In Mark context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "all things" and "answering" with trust shaped by these words, not by a vague optimism outside the passage.