The Biblical concept of hester panim הסתר פנים (‘hiding of the Face’) is common knowledge in Judaism.*
It is the condition of humanity that leads to doubting the very existence of G-d. ‘Face’ in Hebrew (panim) is not the same as the English, which is the exterior, as in the face of a building, whereas panim is the root of the word panima and bifanim: interior/inside. It is also the word for ‘presence,’ as in bou lifanav (come into his presence).
The life’s work of the Messiah is to remove the blinding fog of our sin (khet, meaning to aim in the wrong direction and miss the target) that we may return again and enter into the presence of G-d, and to know Him as a friend knows a friend.
The Passover is the Lamb, who said, “I am come that they might have life, and that they might have it more abundantly.”
*In the Book of Deuteronomy 31:17: “Then My anger will be kindled against them in that day, and I will forsake them and hide My face from them, and they shall be consumed.”