Who Is The Holy Spirit?
The Holy Spirit is God, or to be more precise, he is the third person of the Godhead. How do we know? The Scriptures:
(1) call the Holy Spirit God (Acts 5:3-4)
(2) place the Holy Spirit alongside the Father and the Son as equal in authority and significance (Matthew 28:19; Mark 1:10-11, John 14:25-26, 15:26-27, 2 Cor 13:14)
(3) ascribe to the Holy Spirit all the attribute of God like being all knowing (1 Cor 2:10f), all powerful (Isa. 40:13-17), Creator (Genesis 1:2), everywhere present (Ps 139:7-9), holy (Eph 4:30), and truth (John 14:17).
In addition the Holy Spirit is described as personal. He is not just a force or a power. The Spirit can be grieved (Eph 4:30), can communicate (2 Tim 3:16, Rev 2:7), prays (Rom 8:26), has a will (1 Cor 12:4-7), and has a mind (1 Cor 2:10).
So who is the Holy Spirit? He is God Almighty, the third person of the God-head who deserves to be worshipped and honoured along with God the Father and God the Son.