Luke 24:16

but their eyes were in such a state as to keep them from recognizing Him.

John 20:14

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

John 21:4

Now just as day was breaking, Jesus took His stand on the shore, though the disciples did not know that it was Jesus.

Treasury of Scripture Knowledge

Summary

And Joseph knew his brethren, but they knew not him.

Bible References

But they knew

Luke 24:16
but their eyes were in such a state as to keep them from recognizing Him.
John 20:14
On saying this she turned around and saw Jesus standing there, but she did not know that it was Jesus.
John 21:4
Now just as day was breaking, Jesus took His stand on the shore, though the disciples did not know that it was Jesus.