The three were also up against literary conventions regarding subject and style. (laurettelong.com)
Both of these reading strategies, however, rely on the good son / bad son literary convention which Luke himself seems to be subverting. (religion-online.org)
First, the doctrine of inerrancy allows for figures of speech, proper use of genre, and other literary conventions that were in use at the time the Bible was written. (redeeminggod.com)