These letters, to congregations in Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia, and Laodicea, reveal that Christians in this part of Asia Minor were then facing various dangers, such as immorality, sectarianism, and apostasy. ​ — Revelation 1: 9, 11; 2: 14, 15, 20.
Surat - surat ini, yakni kepada sidang di Efesus, Smirna, Pergamus, Tiatira, Sardis, Filadelfia, dan Laodikia, menunjukkan bahwa orang - orang Kristen di bagian Asia Kecil ini sedang menghadapi berbagai bahaya, seperti amoralitas, sekte - sekte, dan kemurtadan. ​ — Penyingkapan 1: 9, 11; 2: 14, 15, 20.