You shouldn't talk on your phone in church.
Andrew has a needy wife who he left at home while he attends a church service.
Andrew wants to be a good person.
Andrew turns his phone on silent so that he can pay attention to the service and learn lessons that will make him a better man.
Andrew chooses to answer his phone during the service when his wife calls over something frivolous because he believes it is his duty to be a good husband.
The service goes of without a hitch and other people attending and Andrew are able to learn lessons from the service.
Other people attending the church service are very annoyed by Andrew's phone conversation in the middle of the service which he feels bad about.