Samuel Bishop shares his story:  

Powerful message and prayer by John Ramirez

If you confess with your mouth that Jesus is Lord and believe in your heart that 
God raised Him from the dead, you will be saved.  For it is by believing in your
heart that you are made right with God, and it is by confessing with your
mouth that you are saved (Romans 10:9-10).  
Ask God to help you with any unbelief.

12 Powerful Scriptures for Spiritual Warfare Resistance (that Samuel used)