Luke 24:16

But their eyes were restrained, so that they did not recognize him.

John 20:14

Having said this, she turned back, and saw Jesus standing, and knew not that it was Jesus.

John 21:4

But when the morning had now come, Jesus stood on the shore; but the disciples knew not 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 restrained, so that they did not recognize him.
John 20:14
Having said this, she turned back, and saw Jesus standing, and knew not that it was Jesus.
John 21:4
But when the morning had now come, Jesus stood on the shore; but the disciples knew not that it was Jesus.