The main idea is that books like Bible and Quran were sent to humanity so they are made for humans of the time.

The “anger” isn’t supposed to be a literal anger, just how humans identify what happened.

For example most verses about wrath follow with curse or punishment etc, so maybe “wrath” is just what humans call it when God curses or punishes people; and it’s not a literal feeling of anger.

I think there was a similar debate with how some verses say God “heard” or “saw” things etc in the books?