John 21:4
Now as the day was dawning Jesus was [seen] standing on the shore, but the disciples did not know it was Jesus. [Note: Probably because it was not light enough yet].
John 20:14
After she said this, she turned around and saw Jesus standing there, but did not know it was Him.
Mark 16:12
After these things happened, Jesus showed Himself in a different form to two disciples [Note: One was named Cleopas. See Luke 24:13-18], as they were walking out into the countryside [i.e., to the village of Emmaus, about seven miles northwest of Jerusalem. See Luke 24:13].
Luke 24:15-16
And it happened, as they were talking and discussing together, that Jesus came near [them] and began walking along with them.
Luke 24:31
[Immediately] their eyes were opened [i.e., they were given insight] so they could recognize Him. And [just then] He disappeared from their view [Note: The Greek says, "became invisible," suggesting that He vanished miraculously].