Passage
The Jews therefore said, “Will he kill himself, because he says, ‘Where I am going, you can’t come’?”
The Jews therefore said, “Will he kill himself, because he says, ‘Where I am going, you can’t come’?”
John 8:20 Jesus spoke these words in the treasury, as he taught in the temple. Yet no one arrested him, because his hour had not yet come.
John 8:21 Jesus said therefore again to them, “I am going away, and you will seek me, and you will die in your sins. Where I go, you can’t come.”
John 8:22 The Jews therefore said, “Will he kill himself, because he says, ‘Where I am going, you can’t come’?”
John 8:23 He said to them, “You are from beneath. I am from above. You are of this world. I am not of this world.
John 8:24 I said therefore to you that you will die in your sins; for unless you believe that I am he, you will die in your sins.”
The verse centers on "jews", "therefore", "said", "kill", "himself", "says", "where", and "going". It is saying that the verse draws attention to "jews" and "therefore", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 21's "Jesus said therefore again to them I..." into verse 23's "He said to them You are from...", so "jews" and "therefore" belong inside that flow. 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 "jews" and "therefore" with trust shaped by these words, not by a vague optimism outside the passage.