Acts 19:1-10 Upon Paul's return to Ephesus, he encounters a group of 'disciples' who resemble the car illustration I just used. To the naked eye they have the outward appearance of disciples, but they are completely stalled out – they are trying to live the Christian life on deficient faith. As we look into 19:1-10 today, we see that the Holy Spirit is not an optional add-on for the Christian life. The Holy Spirit is paramount in the life of every believer. The Holy Spirit is the engine of our faith and walk with Christ. True faith is always marked, corrected, equipped, and multiplied by the presence and power of the Holy Spirit.