https://youtu.be/Lzv6jcQeqMo?si=4QiNXvazPldVZjVw
Sardis was a church not unlike churches today. They had brought the world into the church and corrupted the mission of the church. They were dead in many ways and even the few faithful were dying. Jesus Christ sends them and any church that follows their ways a very stark warning: repent or face judgment. This messages speaks to all churches of all time to make sure they stay on point and preach the Bible and glorify Christ alone.