The fifth letter that Jesus has John write is to the Church in Sardis – the church of the walking dead. They had a name that they were alive – but inside they were dead. Think of the large churches in Rome or Scotland for instance. Big, beautiful churches with stain glass and high ceilings. But – they are dead. The Spirit of God is not there – people are not coming to Jesus – the buildings are just buildings. And Jesus says to John – tell this church in Sardis to wake up and strengthen what little remains. For us that might mean –make sure we are truly a Christian, go back to church, pick up your bible, read a good Christian book. Jesus says – WAKE UP!
https://www.youtube.com/watch?v=4X-XqpHC3pE