John 21:4
"But when the morning was now come, Jesus stood on the shore: but the disciples knew not that it was Jesus."
Cross References (ranked by relevance)
John 20:14
And when she had thus said, she turned herself back, and saw Jesus standing, and knew not that it was Jesus.
Luke 24:31
And their eyes were opened, and they knew him; and he vanished out of their sight.
Mark 16:12
After that he appeared in another form unto two of them, as they walked, and went into the country.