The Scriptures teach that the Holy Spirit—also called the Holy Ghost, the Spirit, the Spirit of the LORD—is a person, namely God himself. More specifically, he is the third person of the Godhead.
The following Scriptures show that the Spirit has a voice, emotions, and a will. But before reading these Scriptures, know that the Spirit no longer speaks vocally to anyone, nor does he give visions or dreams anymore.
The Spirit has a voice. 2 Samuel 23:2 “The Spirit of the LORD spake by me, and his word was in my tongue.” Acts 8:29 “Then the Spirit said unto Philip, Go near, and join thyself to this chariot.” Acts 10:19,20 “While Peter thought on the vision, the Spirit said unto him, Behold, three men seek thee. Arise therefore, and get thee down, and go with them, doubting nothing: for I have sent them.”
The Spirit has emotions. Ephesians 4:30 “And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.” The word grieve means “to give pain of mind to; to wound the feelings; to make sorrowful; to excite regret in; to offend; to displease; to provoke”; “to press heavily upon, as a weight; to burden; to make heavy; to affect with grief or deep sorrow; to vex, trouble, or oppress mentally; to annoy; to make angry; to provoke to anger or resentment; to incense, offend”.
The Spirit has a will. Acts 8:29 “Then the Spirit said unto Philip, Go near, and join thyself to this chariot.” What’s more, the Spirit teaches saved people the things in God’s Book, as well as helps us glorify the Lord (see, John 16:13,14).
Isaiah 40:13,14 “Who hath directed the Spirit of the LORD, or being his counseller hath taught him? With whom took he counsel, and who instructed him, and taught him in the path of judgment, and taught him knowledge, and shewed to him the way of understanding?” Due to the hyper-specific wording of the text, it is clear that the words “his” and “he” and “him” are referring to the Spirit specifically. This further shows that the Spirit is a person.
The Spirit is not, as some imagine, God’s impersonal active force. The Holy Spirit is a person; he is God. While there are more scriptural proofs for this, the presented evidence should suffice.
Remember, an impersonal force cannot speak, command, reprove, make decisions, teach, become grieved, etc.
References:
Webster, Noah, and Rosalie J. Slater. “Grieve.” Noah Webster’s First Edition of an American Dictionary of the English Language, Foundation for American Christian Education, 2009.
“Grieve.” The Compact Edition of the Oxford English Dictionary: Complete Text Reproduced Micrographically, I A-O, Oxford University Press, 1971, pp. 1205–1206.