Genesis 42:8

And Joseph recognised his brethren, - whereas they, recognised him not.

Genesis 37:2

These, are the generations of Jacob - Joseph, when seventeen years old, was shepherding with his brethren among the flocks, and, he, being a youth, was with the sons of Bilhah and with the sons of Zilpah wives of his father, - so then Joseph brought in the talk about them - something bad, unto their father.

Luke 24:16

but, their eyes, were held, so as not to know him.

John 20:14

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

John 21:4

But, morning by this time drawing on, Jesus stood upon the beach; nevertheless, the disciples knew not 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 held, so as not to know him.
John 20:14
These things saying, she turned round, and seeth Jesus standing, and knew not that it was, Jesus.
John 21:4
But, morning by this time drawing on, Jesus stood upon the beach; nevertheless, the disciples knew not that it was, Jesus.

General references

Genesis 44:19
It was, my lord, who asked his servants, saying, - Have ye a father, or a brother?