Passage
Jesus answered them, “Truly, truly, I say to you, everyone who commits sin is the slave of sin.
John 8:34 (LSB)
Nearby Context
John 8:32 and you will know the truth, and the truth will make you free.”
John 8:33 They answered Him, “We are Abraham’s seed and have never yet been enslaved to anyone. How is it that You say, ‘You will become free’?”
John 8:34 Jesus answered them, “Truly, truly, I say to you, everyone who commits sin is the slave of sin.
John 8:35 And the slave does not remain in the house forever; the son does remain forever.
John 8:36 So if the Son makes you free, you will be free indeed.
Study Lenses
The verse centers on "jesus", "answered", "truly", "everyone", "commits", and "slave". It is saying that the verse draws attention to "jesus" and "answered", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 33's "They answered Him We are Abraham s..." into verse 35's "And the slave does not remain in...", so "jesus" and "answered" 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 "jesus" and "answered" with trust shaped by these words, not by a vague optimism outside the passage.