The Holy Spirit is the Spirit of God and is part of the “Trinity” of God. The Holy Spirit can be found dating back to the book of Genesis (Genesis 1:2). In the Bible He is also referred to as The Spirit or Spirit of God/Lord (Job 33:4, 1 Corinthians 2:10). When Jesus was baptized by John the Baptist, he was baptized with the Holy Spirit (Matthew 3:16). It is because of the Holy Spirit that Jesus was able to heal and perform signs and miracles. Of course his faith was needed for the the Holy Spirit to work, but they were completed through the Holy Spirit (Acts 10:38). Because of the Holy Spirit Jesus was raised from the dead.
Today as believers, we are given the same power through the Holy Spirit, that Jesus used while on Earth. Without the Holy Spirit, and faith we are unable to fellowship with God.
Where is the Holy Spirit?
He lives inside each believer (Romans 8:11). The Holy Spirit also helps us from sinning. Sure, you can still commit a sin against God while the Holy Spirit lives in you, but you will grieve him (Ephesians 4:30). You will have this feeling of guilt and the Spirit will lead you to repent. If we allow for the Holy Spirit to work in our lives each day, we will not gratify the desires of the world and sinful nature (Galatians 5:16).