Please capitalize where necessary: the book is written as a diary but jumps very from person to person.
A: The book is written as a diary but jumps very from person to person.

Please capitalize where necessary: some roman catholics claim that these "brothers" were actually jesus' cousins.
A: Some Roman Catholics claim that these "brothers" were actually Jesus' cousins.

Please capitalize where necessary: donaldukas12 , 20 years old, united kingdom
A: Donaldukas12 , 20 years old, United Kingdom

Please capitalize where necessary: 25 and he said unto them, did ye never read what david did, when he had need, and was hungry, he, and they that were with him?
A:
25 And he said unto them, Did ye never read what David did, when he had need, and was hungry, he, and they that were with him?