What message does Ellie Wiesel send about religious belief in Night?

If
there's one message to be taken away from in regard to religious belief,
it is that belief alone is not sufficient to face the horrors of humanity's darkest moments.
However, even after a person loses their faith in God, they do not cut faith out of their lives.
In the beginning of the narrative, you would scarcely be able to find a more religious and
upstanding member of the community than Wiesel. However, it is not long before his experiences
begin to distort and warp Wiesel's opinion of God. After witnessing the horrors that the
concentration has to offer, in particular the brutal torture and execution of children such as
the young pipel, Wiesel feels angry with God for allowing this hardship to happen and doing
nothing to stop the suffering of His people.

Wiesel wonders how God could be
so cruel. However, instead of forgetting God and moving on, Wiesel seems to behave spitefully
toward Him. He is deliberate in his refusal to fast and actually seems to demonstrate some
renewed vigor in wake of his new antagonistic stance against God. It seems that Wiesel is not
doubting God's existence as much as he doubts His intention, and this allows him to change the
way he approaches faith to make sense of his new situation.