What did Jesus mean when He warned that many would claim that Christ was in the "inner rooms" in the last days (Matthew 24: 23-27)?
The KJV doesn't call them inner rooms, it calls them "secret rooms".
The "inner rooms" were the holy of holies of the Jewish Temple.
In this day and age, those religions or secret societies who claim to possess hidden knowledge and priviledged information about things divine and occult can be considered the "inner room" or "secret room".
They will claim that Jesus is "one of them", but not divine.
All religions claim to be the "true church" ... isn't this what Jesus was warning us about?