Personality is defined as the characteristic patterns of thoughts, feelings, and behaviors that make a person unique. Each of us have a very distinctive and unique personality. We might resemble our siblings, parents or even grandparents in few behavioral traits, however our personality will be very different from them. As we know, we are all created in the image and likeness of God. So does God have a personality? Of course, YES. Our God is a triune God and each of the Godhead has a distinctive personality, however is in perfect harmony with each other. We normally get to study about the persona of the Father and the Son, but nothing much about the Holy Spirit.
Let us open the treasure book and find the Holy Spirit.
OPENING THE TREASURE BOOK

The Persona of the Holy Spirit
Psalms 143:10
Teach me to do Your will,
For You are my God;
Your Spirit is good.
Lead me in the land of uprightness.
John 15:26
But when the Helper comes, whom I shall send to you from the Father, the Spirit of truth who proceeds from the Father, He will testify of Me.
But one and the same Spirit works all these things, distributing to each one individually as He wills.
1 Corinthians 12: 11
Ephesians 4:30
And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.
The Holy Spirit is good and is the Spirit of truth. He has a will of His own which is in perfect alignment with the will of the other Godheads. However, unlike the other personalities of the trinity, Holy Spirit is very gentle and sensitive. We already learned about the Father God (The anger of God) that in all unrighteousness and ungodliness, His wrath is revealed. However, with Holy Spirit the emotion is different. In Isaiah 63:10 we read “But they rebelled and grieved His Holy Spirit;”. Ungodliness and unrighteousness grieves Him. He is very sensitive. And probably, this is the reason why Jesus taught us not to blaspheme against the Holy Spirit and that such a sin is considered unpardonable.
“Therefore I say to you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven men. Anyone who speaks a word against the Son of Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, either in this age or in the age to come.
Matthew 12: 31 – 32
Assuredly, I say to you, all sins will be forgiven the sons of men, and whatever blasphemies they may utter; but he who blasphemes against the Holy Spirit never has forgiveness, but is subject to eternal condemnation”— because they said, “He has an unclean spirit.”
Mark 3: 28- 30
Blasphemy is the offence of speaking in a manner showing lack of respect especially against God or sacred things. It is basically profane talk. Being disrespectful to Holy spirit and blasphemy against the Spirit will not be tolerated anytime. There is no forgiveness to such a sin – it is Unpardonable. In fact, such a person is subject to eternal condemnation. The Holy Spirit is treated with utmost respect by every persona of the trinity and expects us to do the same.
Here, Matthew 12 and Mark 3 reports the same event. When Jesus continued healing and freeing people from bondage of evil spirits, the Pharisees said Jesus is doing all this with the help of an unclean spirit. This is a blasphemy against the Holy Spirit. So be careful about what we speak about the work of Holy Spirit done through His people all around the world. Let it not be a blasphemy resulting in eternal condemnation.
So in conclusion, Holy Spirit is good, always truthful, very gentle & sensitive having a will of His own. More of His persona will be revealed to you in your personal walk with Him.

The role of Holy Spirit in our lives
Ephesians 1:13 states, when we accept Jesus as our savior, we are sealed with His Spirit. This spirit of God dwells with us and in us. The worldly man who is controlled by the desires of his flesh (Galatians 5:19-21), will not know him and cannot receive him.
If you are not saved, invite Jesus to your heart today and confess Him with your mouth to accept Him as your savior and the Spirit of God will come and abide with you and in you!!!
This concept is similar to that seen in the business world. If a big firm acquires a smaller company, a representative or a group of representatives are sent to the newly acquired organization to overlook their affairs, help them and guide them in following the company polices, rules and regulation.
Similarly, once we accept Jesus, the Holy Spirit lives with us and in us as a representative of the triune God overlooking our affairs and offering us guidance and counsel.
Let us look into the major roles of the Holy spirit in our lives as a representative of the triune Godhead.
And I will pray the Father, and He will give you another Helper, that He may abide with you forever.
John 14:16
But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you.
John 14:26
2 Corinthians 13:14
The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Spirit be with you all. Amen.
The major role of Holy Spirit in our lives is that He is our Helper who abides with us and in us. He is also our teacher who teaches us all things about God, being Godly and righteous. He is also in communion with us. Communion is a close relationship with someone in which feelings and thoughts are exchanged. So he is in a relationship with us, one that is similar to a friend / Soul mate.
Treasures uncovered

The Holy Spirit is good, always truthful, very gentle & sensitive having a will of His own. More of His persona will be revealed in our personal walk with Him.
Blasphemy against the Holy spirit and being disrespectful to Him will not be tolerated anytime. It is an unpardonable sin and will never be forgiven. Such a person is under eternal condemnation.
Holy Spirit is our Helper, our Teacher and most of all our Friend and Soul Mate.
Once He comes to live in us, there are also many provisions made available to us – freedom, hope, life, secrets of God, strength, counsel, guidance and so on. He will do His part no matter what, however in order to properly make use of this helper in our life, we too should invest time in the relationship and be sensitive to His voice in our lives.
Prayer:
Father, we thank you for this valuable lesson on the Holy Spirit. We thank you for sending Him to live in us and with us. Holy Spirit, we thank you for being our helper, our teacher and our friend. Thank you for all the counsel and guidance you provide us. Help us to be sensitive to your voice. Help us not to grieve you nor sin against you. Please reveal more of you in our lives. In Jesus’ name Amen.