Final answer:
In the memoir Night, Elie Wiesel realizes the heartbreaking truth about Rabbi Eliahu and his son during the Holocaust. This realization causes Elie to question his faith and the existence of a benevolent God.
Step-by-step explanation:
Elie Wiesel, in his memoir Night, realizes the horrible reality concerning Rabbi Eliahu and his son while they are being forcibly marched during the Holocaust.
Elie witnesses how Rabbi Eliahu's son purposely tries to distance himself from his weak and tired father, abandoning him in order to survive.
This realization causes Elie to question his own faith and humanity, as he begins to doubt the existence of a benevolent God in the face of such cruelty.