What does Revelation 2:18 mean?
The name Thyatira means "continual sacrifice," prefiguring the character of the Christian church from AD 500 to 1500. Thyatira was a wealthy inland city in Asia Minor. It was well known for its trade guilds, especially the dyers trade guild. The city's water combined with a red pigment from the roots of certain herbs produced a brilliant red that was conducive to dyeing fabrics. Lydia, who became a believer in Philippi, was from Thyatira and sold purple material (Acts 16:14).Residents of Thyatira worshiped Apollo, the sun god under the surname Tyrimnas. Apollo was a son of the chief Greek god, Zeus. As such, it is significant that Jesus identified himself to the church at Thyatira as the Son of God. Likewise, this probably explains why Jesus is here depicted with flaming eyes and feet like burnished—white hot—brass. His deity outshines the sun by far, so the church at Thyatira could view Him as far more glorious than Tyrimnas.
Jesus' power and spiritual sight is on full display here. Nothing can escape His scrutiny. He can see what is right and wrong with the church. His feet appear to be like blazing white brass. He stands ready to judge whatever sin He finds in Thyatira.