Martin Lloyd-Jones says, “Because of certain exaggerations, excesses and freak manifestations, and the crossing of the border line from the spiritual to the scientific, the political and the merely emotional, there are many people 
who are afraid of the doctrine of the Holy Spirit, afraid of being too subjective. So they neglect it altogether. I would also suggest that others have neglected the doctrine because they have false ideas with regard to the actual teaching concerning the person of the Holy Spirit.”
There are three persons in the God head; the Father, the Son, and the Holy Spirit. These are the only persons in the God head. They share four characteristics of divinity which soundly establishes their character and nature. All three are Omnipotent which means “all-powerful.” Only three Persons have the attribute of omnipotence. God the Father is omnipotent in 1 Peter 1:5. The Son is omnipotent in Hebrews 1:3. The Holy Spirit is omnipotent in Romans 15:19. All three are omniscient. That means “all-knowing.” The Father is omniscient in Jeremiah 17:10. The Son is omniscient in John 16:30; 21:17; and Revelation 2:23. The Holy Spirit is omniscient in 1 Corinthians 2:10–11. All three are omnipresent meaning that “God is everywhere.” The Father is omnipresent according to Jeremiah 23:24. The Son is omnipresent according to Matthew 18:20 and 28:20. The Holy Spirit is omnipresent according to Psalm 139:7–10.
The fourth characteristic that all three persons in the God head share is eternality. The scriptures clearly establish that for God the Father and last week I demonstrated that for God the Son. Hebrews 9:14 establishes this trait for the Holy Spirit. It says, “…how much more will the blood of Christ, who through the eternal Spirit offered himself without blemish to God, purify our conscience from dead works to serve the living God.” Only three persons possess all four of these attributes of God. John Owen, the renowned puritan theologian tells us (according to Stephen Olford) that if the sin of Old Testament times was the rejection of God the Father, and the sin of New Testament times was the rejection of God the Son, then the sin of our times is the rejection of God the Holy Spirit.”