The letter to the Church of Ephesus, as found in Revelation 2:1-7, holds a prominent place among the seven churches addressed in the Book of Revelation. Ephesus is mentioned frequently in sermons and writings, more so than the other six churches combined. The Apostle Paul spent three years in Ephesus and wrote the epistle to the Ephesians, a distinction not shared by the other churches. In Revelation, the letter to Ephesus is the first, emphasizing the critical issue of love as the subject of its correction. The warning to the Ephesians in Revelation 2:4 is clear: they have left their first love. This abandonment, as conveyed in the original Greek, signifies a forsaking of their most important love, which is their highest duty to God. This primary love is to love the Lord your God with all your heart, soul, and mind, as Jesus Christ summarized. If this love is lost, everything is lost, and Christ warns in Revelation 2:5 that He will remove their lampstand, indicating the loss of His presence and their status as a recognized church. Despite many commendable qualities, such as exemplary works, tireless labor for Christ's name, doctrinal vigilance, and hatred of false teachings, the Church at Ephesus had abandoned the love that once marked their early Christian life. They tested false apostles, could not bear evil, and even demonstrated immense zeal, as seen in Acts 19 when converts burned costly books of occult practices. Paul also noted their faith in the Lord Jesus and love for the saints in Ephesians 1:15. However, 34 years later, the devastating warning in Revelation reveals that they had drifted from this first love. Paul had forewarned the Ephesian elders of a coming crisis and falling away in Acts 20:29-31, predicting that savage wolves would come among them, and men from within would speak perverse things to draw disciples away. He urged them to watch and remember his three years of ceaseless warnings. This drift from first love can happen through weariness, distraction, narrow perspective, or complacency, causing a loss of focus on the whole, which is God. The Ephesians are commanded to remember and repent, returning to a passionate focus on God through action, mirroring the zealous, single-minded love of their beginnings, and developing it into a deeper, more mature love.