The Holy Spirit: The Third Person of the Trinity

The Holy Spirit: The Third Person of the Trinity

the-holy-spirit-the-third-person-of-the-trinity

The Holy Spirit: God With Us

Every Christian should know the Holy Spirit as more than an abstract idea. He is the Third Person of the Trinity—the God who fills the silence, who moves in hearts, and who transforms lives. I write this as someone who has been deeply impacted by His presence and power. I want you to see why He matters—and why knowing Him matters most.

He Is God

First, let’s establish something essential: the Spirit is divine. He is not a force, not energy, not a vague power. Scripture speaks of the Holy Spirit in personal terms. Jesus called Him “He” and “another Helper,” referring to someone distinct and real, not to an impersonal force (John 14:16, 26).

He searches hearts, speaks, leads, and has a will. In Acts 15:28 the Spirit speaks—and those words clearly guide the decision of the early church. Romans 8:14 states that the children of God are “led by the Spirit,” and at Ephesians 4:30 Paul writes, “Do not grieve the Holy Spirit,” implying that He feels emotion. These are not the actions of impersonal energy but of a living Person.

Beyond personal attributes, the Spirit shares in the divine nature. He is omniscient, holy, good, life-giving, and truth itself. Isaiah asked who has directed the Lord’s Spirit, who has taught Him knowledge and informed Him of the way? That points to the Spirit as all-knowing (Isaiah 40:13–14). Scripture also calls the Spirit “good,” and Jesus Himself says no one is good except God (Mark 10:18), making clear the Spirit’s deity. He inspires Scripture. Paul writes, “All Scripture is God-breathed,” and that is attributed to the Spirit (2 Timothy 3:16).

Peter calls prophecy men “moved by the Holy Spirit spoke from God” (2 Peter 1:21). And in Acts 5, Peter confronts Ananias: “You have lied to the Holy Spirit… You have not lied to men but to God” (Acts 5:4). That means lying to the Spirit is lying to God. That seriousness changes everything.

The Case from Isaiah Chapter 6

We also see compelling proof of the Holy Spirit’s deity by looking at how Scripture attributes the same divine encounter to God the Father, God the Son, and God the Holy Spirit. In Isaiah 6, the prophet Isaiah sees the Lord “high and lifted up,” with angels crying, “Holy, holy, holy is the Lord of hosts; the whole earth is full of His glory” (Isaiah 6:1–3). There is no question—Isaiah is in the presence of Almighty God.

Then in John 12:37–41, the Apostle John comments on that very same passage. He writes, “Isaiah said these things because he saw His glory and spoke of Him”—and the context clearly shows John is speaking about Jesus Christ. That means the Lord Isaiah saw was Jesus pre-incarnate, revealing that Jesus is YHWH God.

But there’s more. In Acts 28:25–27, Paul refers to that same passage from Isaiah 6, and says, “The Holy Spirit was right in saying to your fathers through Isaiah the prophet…” and then quotes it directly. So Paul attributes those divine words in Isaiah 6—spoken by the Lord—to the Holy Spirit.

This isn’t a contradiction. It’s revelation. The same words are ascribed to God, to Jesus, and to the Holy Spirit, because the three are one. Each Person of the Trinity shares the fullness of deity. The Father is God. The Son is God. The Spirit is God.

You cannot read these texts honestly and reduce the Holy Spirit to a vague influence or theological accessory. He is Almighty God, worthy of reverence, obedience, and worship.

He Is the Third Person of the Triune God

We say “third Person” of the Trinity not because of importance. The Holy Spirit is equal in glory and majesty with the Father and the Son. He is third only in the order of revelation and role. In the Great Commission, Jesus says to baptize “in the name of the Father, and of the Son, and of the Holy Spirit” (Matthew 28:19).

Jesus refers to ONE NAME—not “names”—indicating unity. Yet He names three distinct Persons. The Holy Spirit is placed alongside the Father and the Son in equal authority and honor. This is a powerful affirmation that the Spirit is not a lesser being, but fully divine.

Jesus promised the Spirit would come after Him (John 14:16–17; 16:12–15), making Him the third Person revealed in the Trinity. Historic creeds like the Athanasian Creed and the Westminster Confession reinforce this truth: There is one God in three persons, each coequal and coeternal.

More Biblical Proofs That the Holy Spirit Is God

The doctrine of the Trinity is not a man-made invention or a theological add-on. It is woven into the fabric of Scripture. The Holy Spirit is not a force or a symbol of God’s power. He is the Third Person of the Trinity—coequal and coeternal with the Father and the Son. Below are ten biblical proofs that clearly affirm the Holy Spirit’s deity and personhood.

1. The Baptism of Jesus (Matthew 3:16–17)

“When Jesus was baptized, immediately He went up from the water, and behold, the heavens were opened to Him, and He saw the Spirit of God descending like a dove and coming to rest on Him; and behold, a voice from heaven said, ‘This is My beloved Son, with whom I am well pleased.’”

In this moment, the Father speaks from heaven, the Son is baptized on earth, and the Spirit descends and anoints Him. All three persons are present at the same time, clearly distinct yet united in the same divine work as Jesus starts His earthly ministry.

2. Paul’s Trinitarian Benediction (2 Corinthians 13:14)

“The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all.”

This is a beautiful summary of the Gospel. Grace comes from Christ. Love flows from the Father. Fellowship is with the Holy Spirit. Paul is not being poetic. He is invoking divine blessing equally from all three Persons.

3. Trinitarian Salvation in 1 Peter 1:2

“…according to the foreknowledge of God the Father, in the sanctification of the Spirit, for obedience to Jesus Christ and for sprinkling with His blood…”

The Father chooses. The Spirit sanctifies. The Son redeems. Here again, the Holy Spirit plays a divine role in the process of salvation, not as a helper to God, but as God Himself at work.

4. Ephesians 1 – Salvation in Three Movements

Verses 3 to 6 show the Father choosing us.
Verses 7 to 12 describe the Son redeeming us.
Verses 13 to 14 reveal the Holy Spirit sealing us.

Paul’s opening doxology in Ephesians 1 is one of the clearest Trinitarian passages in the Bible. The Spirit is the “guarantee of our inheritance,” a divine act that only God can accomplish.

5. The Spirit’s Divine Knowledge (1 Corinthians 2:10–11)

“The Spirit searches everything, even the depths of God… no one comprehends the thoughts of God except the Spirit of God.”

The Spirit fully knows the mind of God. This would be impossible if the Spirit were a created being. Only God knows God perfectly. The Spirit’s omniscience proves His deity.

6. The Eternal Spirit (Hebrews 9:14)

“Christ, who through the eternal Spirit offered Himself without blemish to God…”

The phrase “eternal Spirit” ties the Holy Spirit directly to the divine nature. Only God is eternal. Created beings are not eternal. This verse affirms that the Spirit has always existed and is fully God.

7. The Spirit Speaks as God (Acts 13:2)

“While they were worshiping the Lord and fasting, the Holy Spirit said, ‘Set apart for Me Barnabas and Saul for the work to which I have called them.’”

The Holy Spirit speaks with personal authority, saying “I have called them.” He directs ministry, appoints workers, and exercises sovereign will. This is the language of God, not of a messenger or influence.

8. Blasphemy Against the Holy Spirit (Matthew 12:31–32)

“Every sin and blasphemy will be forgiven people, but the blasphemy against the Spirit will not be forgiven.”

This only makes sense if the Holy Spirit is fully divine. You cannot blaspheme a created thing or a power. You can only blaspheme a Person—and only God can be blasphemed at this level of seriousness.

9. The Spirit’s Role in Creation (Genesis 1:1–2; Job 33:4)

“In the beginning, God created… the Spirit of God was hovering over the face of the waters.”
“The Spirit of God has made me, and the breath of the Almighty gives me life.”

The Spirit is not only present at creation—He is active in it. He creates, sustains, and gives life. The New Testament clarifies that all three Persons were involved in creation (see John 1:1–3, Colossians 1:16, and Hebrews 1:2).

Final Thought: This Is Not Optional Theology

Believing in the deity of the Holy Spirit is not a matter of theological trivia. It shapes how you pray, how you understand salvation, how you worship, and how you relate to God daily. To deny the Spirit’s deity is to reject the God who convicts, regenerates, empowers, and comforts.

The Spirit is not less than the Father or the Son. He is fully God—worthy of your trust, obedience, reverence, and love.

Now you know about the divinity of the Spirit. Let me tell you what the Spirit does—what He means for your life, right now.

Roles and Activities of the Holy Spirit

He Convicts

The Spirit’s first job in someone’s life is not to feel good or give them warm fuzzies. His role is to confront. Jesus said the Spirit will convict the world concerning sin, righteousness, and judgment (John 16:8). Before I truly understood the Gospel, it was the Spirit making me aware of my own emptiness and my need for repentance that broke my heart open.

He Regenerates

You cannot rescue a heart that is dead. The Spirit is the one who brings dead souls to life. As Titus 3:5 says, we are saved not by our works but by God’s mercy through the “washing of regeneration and renewal of the Holy Spirit.”

He Indwells and Seals

From the moment we trust Christ, the Spirit takes up residence in us. Paul says we are baptized by the Spirit into the body of Christ (Romans 6:3). He seals us till the day of redemption (Ephesians 1:13; 4:30), guaranteeing that what God begins in us He will complete.

He Sanctifies

Sanctification is not self-effort. God’s Spirit is the one who sets us apart. Galatians 5:16–18 explains how the Spirit leads us to walk in righteousness instead of fleshly desires. He produces holiness in us—even when we struggle, He doesn’t abandon us.

He Teaches and Illuminates

When Scripture seems dull or difficult, the Spirit brings clarity. Jesus calls Him the Helper who will teach us all things and bring to remembrance what Christ said (John 14:26). Paul writes in 1 Corinthians 2:10–11 that the Spirit reveals the mind of God to us.

He Comforts and Empowers

We live in a broken world. The Spirit steps into our weakness with peace and power. Acts 9:31 says the church grew “walking in the comfort of the Holy Spirit.” Romans 8:26 even says He intercedes for us in prayer when words fail and our hearts are weak.

He Glorifies Christ

Everything He does leads us to see Jesus. The Spirit doesn’t draw attention to Himself—He points us to the Son (John 16:14). He wants us to encounter Christ—not just His gifts or signs.

He Equips the Church

The Spirit distributes spiritual gifts to believers (1 Corinthians 12:4–11). He empowered the early church to testify boldly and preach the Gospel. He is still doing that work today.

I’ve known Christians who reduced the Holy Spirit to silence—something safe and predictable. I’ve also seen believers who treated Him like an erratic experiment. Neither is right. The Bible shows Him as fully God and fully personal. He is the “Applier” of the Gospel, of transformation, of worship, of ministry.

When I wake up, I want to remember: there is nothing I can face in this day that the Holy Spirit cannot guide me through. No heart is too hard that He cannot regenerate. No sorrow is so deep that He cannot comfort. No mission is too intimidating that He cannot empower.

Because He is God.

Because He is the Third Person of the Trinity.

Because if you are a born-again Christian, He lives in you.

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