We read about the mark of the beast in the Bible. There are differing schools of thought about what the mark will actually be. Pastor David wants to encourage us all today to be prepared. The way we know when something is a fake is by studying the real thing. So, the way to know the voice of God, as opposed to the mark, is by knowing the Lord intimately. That comes with time spent in His Word daily. This puts us in the practice of hearing His voice, so we won't be fooled by Satan's antics.