Genesis 42:8
And Joseph will know his brethren, and they knew him not
Genesis 37:2
These the generations of Jacob: Joseph the son of seventeen years, was feeding the sheep with his brethren, and this youth with the sons of Bilhah and with the sons of Zilpah, his father's wives: and Joseph will bring their evil slander to their father.
Luke 24:16
And their eyes were holden not to know him.
John 20:14
And having said these, she was turned back, and sees Jesus standing, and she knew not that it is Jesus.
John 21:4
And morning being already come, Jesus stood on the sea-shore: yet the disciples knew not that it is Jesus.