Luke 24 verse 16

And their eyes were opened, and they knew him; and he vanished out of their sight.

And when they came down to him, Elisha prayed unto the LORD, and said, Smite this people, I pray thee, with blindness. And he smote them with blindness according to the word of Elisha. And Elisha said unto them, This is not the way, neither is this the city: follow me, and I will bring you to the man whom ye seek. But he led them to Samaria. And it came to pass, when they were come into Samaria, that Elisha said, LORD, open the eyes of these men, that they may see. And the LORD opened their eyes, and they saw; and, behold, they were in the midst of Samaria.

After that he appeared in another form unto two of them, as they walked, and went into the country.

And when she had thus said, she turned herself back, and saw Jesus standing, and knew not that it was Jesus.

But when the morning was now come, Jesus stood on the shore: but the disciples knew not that it was Jesus.