John 21:4

But, morning by this time drawing on, Jesus stood upon the beach; nevertheless, the disciples knew not that it was, Jesus.

John 20:14

These things saying, she turned round, and seeth Jesus standing, and knew not that it was, Jesus.

Luke 24:15-16

And it came to pass, as they were conversing and reasoning together, that, Jesus himself, drawing near, was journeying with them;

Luke 24:31

And, their, eyes were opened, and they knew him; and, he, vanished from them.

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
These things saying, she turned round, and seeth Jesus standing, and knew not that it was, Jesus.
Luke 24:15
And it came to pass, as they were conversing and reasoning together, that, Jesus himself, drawing near, was journeying with them;

General references

Luke 24:16
but, their eyes, were held, so as not to know him.