Passage
But ye beleeue not: for ye are not of my sheepe, as I sayd vnto you.
But ye beleeue not: for ye are not of my sheepe, as I sayd vnto you.
John 10:24 Then came the Iewes round about him, and sayd vnto him, Howe long doest thou make vs dout? If thou be that Christ, tell vs plainely.
John 10:25 Iesus answered them, I tolde you, and ye beleeue not: the workes that I doe in my Fathers Name, they beare witnes of me.
John 10:26 But ye beleeue not: for ye are not of my sheepe, as I sayd vnto you.
John 10:27 My sheepe heare my voyce, and I knowe them, and they follow me,
John 10:28 And I giue vnto them eternall life, and they shall neuer perish, neither shall any plucke them out of mine hand.
The verse centers on "sheep", "beleeue", "sheepe", "sayd", and "vnto". It is saying that the verse draws attention to "sheep" and "beleeue", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 25's "Iesus answered them I tolde you and..." into verse 27's "My sheepe heare my voyce and I...", so "sheep" and "beleeue" 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 "sheep" and "beleeue" with trust shaped by these words, not by a vague optimism outside the passage.