Passage
Now the servant abideth not in the house for ever: but the son abideth for ever.
Now the servant abideth not in the house for ever: but the son abideth for ever.
John 8:33 They answered him: We are the seed of Abraham: and we have never been slaves to any man. How sayest thou: You shall be free?
John 8:34 Jesus answered them: Amen, amen, I say unto you that whosoever committeth sin is the servant of sin.
John 8:35 Now the servant abideth not in the house for ever: but the son abideth for ever.
John 8:36 If therefore the son shall make you free, you shall be free indeed.
John 8:37 I know that you are the children of Abraham: but you seek to kill me, because my word hath no place in you.
The verse centers on "servant", "abideth", "house", and "ever". It is saying that the verse draws attention to "servant" and "abideth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 34's "Jesus answered them Amen amen I say..." into verse 36's "If therefore the son shall make you...", so "servant" and "abideth" 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 "servant" and "abideth" with trust shaped by these words, not by a vague optimism outside the passage.