The term "Holy Ghost" in the Bible refers to the third person of the Holy Trinity, which comprises God the Father, God the Son (Jesus Christ), and God the Holy Spirit (or Holy Ghost). In the New Testament, the Holy Ghost is often associated with the presence and power of God actively working in the world, particularly in the lives of believers. The Greek term for "Holy Spirit" is "Pneuma Hagion," while the term "Holy Ghost" is derived from the Old English translation of the Bible and is primarily used in the King James Version.The role of the Holy Ghost is multifaceted. He serves as a comforter, guide, and teacher, as indicated in John 14:26, where Jesus promises that the Holy Spirit will teach the disciples all things and remind them of everything He has said. Moreover, in Acts 1:8, it is stated that believers will receive power when the Holy Spirit comes upon them, enabling them to be witnesses for Christ. Additionally, the Holy Ghost plays a crucial role in the process of sanctification, helping believers grow in holiness and producing spiritual fruit (Galatians 5:22-23). Thus, the Holy Ghost is essential for the empowerment, guidance, and spiritual growth of Christians throughout their faith journey.