John 21:4
Just as dawn was breaking, Jesus stood on the shore. The disciples didn't realize it was Jesus.
John 20:14
After she had said this, she turned around and noticed Jesus standing there, without realizing that it was Jesus.
Mark 16:12
After this, Jesus appeared in a different form to two disciples as they were walking into the country.
Luke 24:15-16
While they were discussing and analyzing what had happened, Jesus himself approached and began to walk with them,
Luke 24:31
Then their eyes were opened, and they knew who he was. And he vanished from them.