what would it mean to read this letter out loud in a community, not alone in your dorm room,or just by yourself,in the library?

为什么书信要在人群中大声朗读，而不是在寝室里，图书馆里一人看？

耶鲁公开课 - 新约课程节选

The writer says,"When this letter has been read among you, have it read,also,in the church of the Laodiceans, and see that you read,also,the letter from Laodicea."

写信人说“你们看完此书信后，也让老底嘉教会的信徒阅读，你们也要看老底嘉教会送来的书信“

耶鲁公开课 - 新约课程节选

and if you read more in this letter I won't go through the whole thing, you will see that-- she's very self-deprecating.

如果你们继续深究这封信,我是不会全部读完，你们将会看到-,她非常善于自嘲。

耶鲁公开课 - 1945年后的美国小说课程节选