There are religions that deny the Trinity. They don’t acknowledge the Holy Spirit and His ministry to the Church. Even the Webster dictionary acknowledges the Trinity as being the Father, the Son, and the Holy Ghost. Webster doesn’t have a problem with the Holy Ghost being the third person of the Godhead, so why do some men? Denying the Holy Ghost is denying God His personality. The Holy Ghost is the Spirit of God. The Holy Ghost has the same attributes of God such as omnipresent, omnipotent, omniscient, love, truth, holiness, and wisdom.
I John 5:7 tell us, “For there are three that bare record in heaven, the Father, the Word (Jesus Christ), and the Holy Ghost.” They bear witness one to the other. They work in unison just as the Body of Christ should be working. The Holy Ghost represents power. The word “trinity” itself means a set of three. This unique set of three are one. When you leave out one, you have broken off the union. Without the three, you are good as dead and powerless.