Cross reference
John 21:4
4 Now very early in the morning Jesus was there by the edge of the sea (though the disciples were not conscious that it was Jesus).
John 20:14
14 And then looking round, she saw Jesus there, but had no idea that it was Jesus.
Luke 24:15-16
15 And while they were talking and questioning together, Jesus himself came near and went with them.
16 But their eyes were not open that they might have knowledge of him.
Luke 24:31
31 And then their eyes were open, and they had knowledge of him, but he went from their view.
Mark 16:12
12 And after these things he was seen in another form by two of them, while they were walking on their way into the country.