Passage
`These things I have spoken to you, that ye may not be stumbled,
`These things I have spoken to you, that ye may not be stumbled,
John 16:1 `These things I have spoken to you, that ye may not be stumbled,
John 16:2 out of the synagogues they will put you; but an hour doth come, that every one who hath killed you, may think to offer service unto God;
John 16:3 and these things they will do to you, because they did not know the Father, nor me.
The verse centers on "things", "spoken", and "stumbled". It is saying that the verse draws attention to "things" and "spoken", so its meaning should be read from those terms before moving to application.
The next verse adds "out of the synagogues they will put...", so "things" and "spoken" should be read forward into that movement. In John context, the local focus is the identity of Jesus, new birth, eternal life, and belief and unbelief.
A plain takeaway is to answer the verse's own emphasis on "things" and "spoken" with trust shaped by these words, not by a vague optimism outside the passage.