Genesis 42:8

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

Genesis 37:2

These are the generations of Jacob. Joseph, being seventeen years old, fed the flock with his brethren; and he was doing service with the sons of Bilhah, and with the sons of Zilpah, his father's wives. And Joseph brought to his father an evil report of them.

Luke 24:16

but their eyes were holden so as not to know him.

John 20:14

Having said these things she turned backward and beholds Jesus standing there, and knew not that it was Jesus.

John 21:4

And early morn already breaking, Jesus stood on the shore; the disciples however did not know that it was Jesus.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

But they knew

Luke 24:16
but their eyes were holden so as not to know him.
John 20:14
Having said these things she turned backward and beholds Jesus standing there, and knew not that it was Jesus.
John 21:4
And early morn already breaking, Jesus stood on the shore; the disciples however did not know that it was Jesus.

General references

Genesis 44:19
My lord asked his servants, saying, Have ye a father, or a brother?