The answer is: True

Rev 2:1

Indeed, Ephesus was one of the seven churches mentioned in the book of Revelation—specifically, in Revelation 2:1. The city itself was a prominent center of commerce and religion, notably home to the Temple of Artemis, one of the Seven Wonders of the Ancient World. This cultural backdrop makes the message to Ephesus particularly intriguing, as it faced numerous challenges amid competing ideologies and practices.

When the author, often attributed to John, addresses the church, he starts by complimenting their hard work and perseverance. However, there’s a striking turn when he conveys that they've lost their "first love." One has to wonder what they were zealously devoted to that may have diverted them from their original passion.

Interestingly, the format of listing the warnings and praises had roots in ancient Greek letters, which emphasized thoughtfulness and care in writing. This eerily echoes letter-writing traditions of the time where the opening lines are key.

Since Ephesus was the church fully aware of its plight, Revelation’s epic scenery can spark thoughts heavier than the patterns found in our daily lives. The dynamics of Ephesus remind believers and scholars alike, irrespective of growing faiths, to maintain genuine compassion and love in their pursuits, lest they also forget their foundational guides amidst the tumult of life. So, in exploring these letters, one might also reflect on their personal "first loves."