An Empowerment That Is Lacking

In Acts 19 the Apostle Paul makes a return trip to Ephesus and encounters twelve disciples where he asks them if they had received the Holy Spirit since they believed.  I believe if the Apostle Paul were here today he would ask that same question of some Christians today.  There was something lacking in the disciples that led to that question being asked.  Oftentimes there are Christians who don't have an understanding of the Holy Spirit and His role in the life of the believer.  While the Baptism of the Holy Spirit is not necessary for salvation, it is needed to be an effective witness in the world today.