Revelation 2:25

‘However what you do have, hold fast until I come.'

While many in the church are doing well, they must be careful to maintain their vigilance so that they maintain their position before God, in order to be ready for when He comes. Jesus is clearly concerned lest they be overrun by this menace.

It is perhaps significant that the church of Thyatira appears to have reached a very low ebb in the second century AD, so much so that some denied its very existence. Tertullian (late second century AD) tells us that some sects rejected Revelation because they denied the existence of a church at Thyatira, and Epiphanius (fourth century AD) knew of some who said the same. But it is unlikely that the first century wave of evangelism failed to establish some sort of church there, for churches were formed everywhere in that area. It may well, however, be that the effects of Jezebel destroyed the church so that by the second century it no longer existed.