The most important description of the Third Person of the Trinity comes from the only person who knows Him intimately in a way that no one else can, Jesus Christ. In this study of the Holy Spirit, we will not look at the words spoken by great men and women of history who have spoken about Him, nor those of today, to learn who the Holy Spirit is and about His ministry. Instead, we will look at the words spoken by Jesus Christ, to guide us in this important study on the Holy Spirit.