Answer:
If someone is deeply religious and visibly follows all the moral and ethical codes of his religion, he is pious. Don't become a priest if you're not prepared to live a pious life.
Explanation:
The word we are looking for here is pious (a pious person, a pious life). Pious is a word that originated from the Latin pius, which means dutiful. It's most commonly used in the context of organized religion, like in the given example, but this word can also be used to describe someone who deeply believes in something and lets that affect their behavior. For example, one can be a pious environmentalist if they openly express their care for the environment and live a life that contributes to its improvement.
