Charles Ellicott Commentary John 10:26

"But ye believe not, because ye are not of my sheep." — John 10:26 (ASV)

But ye believe not.—Compare Notes on John 10:5; John 10:14; John 10:16.

As I said unto you.—These words are not found in the Sinaitic or Vatican manuscripts, and are omitted by the best modern editors. They are not, however, without considerable authority, and the fact of their difficulty may have led to their omission. They are sometimes joined to the following verse, and some expositors accept this as their probable meaning; but although the preceding clause of John 10:26 was not actually spoken in the previous discourse, it was implied, and the reference is similar to that of the Messiah in John 10:25.

There is no real difficulty in the fact that He thus refers them to a discourse uttered two months before. In continuity of teaching from Him to them, it immediately preceded, and at the beginning of this discourse, He gathers up the thread of what had gone before. On the other hand, the interval helps us to understand how He refers to a truth that was taught to them, rather than to the actual words in which He taught it.