Why did many Germans bitterly resent the Treaty of Versailles?

The Germans weren’t allowed in negotiating, and under the treaty, they were forced to disarm, surrender land, and pay reparations. Germans felt as if the treaty was forcing them to take the blame for the war. Of course, as you know, this created a lot of resentment and bitterness which has been credited to Hitler’s rise in power.

must repent and believe in god.

or the book

journey across time - chapter 10 "the rise of christianity"