I would also say that the failure to mention certain key components of the New Testament story (…) in sermons highlights the problem: we don’t know how to interpret and make good use of the foundational texts of our faith.
Would you include the following among the “texts of our faith” that are worth “mentioning in sermons” …
“Therefore you also must be ready, for the Son of Man is coming at an hour you do not expect. ” (Matthew 24:44; cp. Luke 12:40)
… or would it seem too much of a provocation against “secular-humanist culture”?