John 20:30
And many other signs truly did Jesus in the presence of his disciples, which are not written in this book:
Cross-references
John 21:25
Parallel
John 21:25 similarly states that many more deeds of Jesus could be written — both emphasize the incompleteness of the record.
John 2:11
Parallel
In John 2:11, the first sign manifests glory and sparks belief—an example of the many signs John mentions as not all recorded.
John 10:25
Parallel
In John 10:25, Jesus says His works bear witness—these works are the signs John says are many but not all written.