John 21:4

As morning was breaking, Jesus [came and] stood on the beach; however, the disciples did not know that it was Jesus.

John 20:14

After saying this, she turned around and saw Jesus standing there, but she did not know that it was Jesus.

Mark 16:12

After that, He appeared in a different form to two of them as they were walking along the way to the country.

Luke 24:15-16

While they were talking and discussing it, Jesus Himself came up and began walking with them.

Luke 24:31

Then their eyes were [suddenly] opened [by God] and they [clearly] recognized Him; and He vanished from their sight.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

But

John 20:14
After saying this, she turned around and saw Jesus standing there, but she did not know that it was Jesus.
Mark 16:12
After that, He appeared in a different form to two of them as they were walking along the way to the country.
Luke 24:15
While they were talking and discussing it, Jesus Himself came up and began walking with them.

General references

Luke 24:16
But their eyes were [miraculously] prevented from recognizing Him.