Before Jesus begins to tell us about the end of the world, He seems very concerned about the state of the churches that were in existence at the time. So, His first order of business is to challenge us to look at our churches and our lives and see if we look like them. The first church Jesus talks about is the church in Ephesus – they had the right doctrine, they hated false teaching and they were very diligent but the problem Jesus says is that they lost their first love. They lost their love for Him – they were playing church without the passion and excitement. This letter to Ephesus forces us to look within ourselves and ask – “Have I lost my first love for Jesus?”
https://www.youtube.com/watch?v=tyD_YypT31M