In, At, Of, or Of The?

The church of the Laodiceans, like 6 other churches, had received a letter from the Lord Jesus Christ and within its words exist no good thing to speak of and a stern call to repentance. Many sermons have been preached about his particular letter, but I want to draw attention to the words in the introduction to the church by Jesus and bring forth a lesson in a different vein. To get a proper understanding of the message, take a journey with me to the 1st century AD...