What lierary device does Wiesel use to illustrate his disillusionment with God?

Wiesel uses two literary devices to illustrate his disillusionment with God.

Anaphora:

Never shall I forget that nocturnal silence which deprived me, for all eternity, of the desire to live. Never shall I forget those moments which murdered my God and my soul and turned my dreams to dust. Never shall I forget these things, even if I am condemned to live as long as God himself. Never.

Rhetoric:

Why, but why should I bless Him? In every fiber I rebelled. Because He had had thousands of children burned in His pits? Because He kept six crematories working night and day, on Sundays and feast days? Because in His great might he had created Auschwitz, Birkenau, Buna, and so many factories of death?