Final answer:
John's reaction when nobody is found worthy to open the scroll is surprise and suspicion.
Step-by-step explanation:
John's reaction when nobody is found worthy to open the scroll is surprise and suspicion. He is surprised because he likely expected someone to be able to open the scroll, and his suspicion is born from this unexpected turn of events. His reaction may stem from the significance of the scroll and its contents, leading him to question why no one is deemed worthy to open it.