Passage
Other sheepe I haue also, which are not of this folde: them also must I bring, and they shall heare my voyce: and there shalbe one sheepefolde, and one shepheard.
John 10:16 (GNV)
Nearby Context
John 10:14 I am that good shepheard, and knowe mine, and am knowen of mine.
John 10:15 As the Father knoweth me, so know I the Father: and I lay downe my life for my sheepe.
John 10:16 Other sheepe I haue also, which are not of this folde: them also must I bring, and they shall heare my voyce: and there shalbe one sheepefolde, and one shepheard.
John 10:17 Therefore doeth my Father loue me, because I lay downe my life, that I might take it againe.
John 10:18 No man taketh it from me, but I lay it downe of my selfe: I haue power to lay it downe, and haue power to take it againe: this commandement haue I receiued of my Father.
Study Lenses
The verse centers on "sheep", "other", "sheepe", "haue", "folde", "must", "bring", and "shall". It is saying that the verse draws attention to "sheep" and "other", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 15's "As the Father knoweth me so know..." into verse 17's "Therefore doeth my Father loue me because...", so "sheep" and "other" 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 "other" with trust shaped by these words, not by a vague optimism outside the passage.