Primary Texts: Deuteronomy 6:4; Matthew 28:19; 2 Corinthians 13:14
“Hear, O Israel: The LORD our God, the LORD is one.” — Deuteronomy 6:4
There is perhaps no Christian doctrine that produces more head-scratching than this one: The Trinity. Father. Son. Holy Spirit.Three.
Yet Christianity says: One God. And immediately someone asks: “How can one equal three?” The simple answer is: It doesn’t.
Christianity does not teach that one God is three Gods. Nor does it teach that one Person is three Persons. It teaches that one God exists eternally in three distinct Persons. And that distinction is where we need to begin.
One What? Three What?
Perhaps the easiest way to understand the basic claim is to ask two questions: How many Gods? One. How many Persons?Three.
The Father is God.The Son is God.The Holy Spirit is God. But: The Father is not the Son.The Son is not the Holy Spirit.The Holy Spirit is not the Father.That is the mystery. Not a mathematical contradiction.
The Bible Gives Us Both Truths. The Old Testament is emphatic about God’s oneness.”The LORD is one.” But when we arrive in the New Testament, we encounter the Father, Son and Holy Spirit in ways that require us to take their distinct identities seriously.
At the baptism of Jesus, for example, the Son is in the water, the Spirit descends like a dove, and the Father’s voice comes from heaven.Three distinct Persons.Yet Christianity remains firmly monotheistic.
The Great Commission
Jesus gives His disciples this extraordinary command: “Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit.” Notice something interesting. He says “name” — singular. Not names. One name. Father. Son. Holy Spirit. Three Persons.One divine identity.
The Father Is God
This part is usually easy for Christians to accept.The Father is God. No controversy there.
The Son Is God
This is where some people become uncomfortable. But the New Testament is remarkably clear about the divinity of Christ. John begins his Gospel: “In the beginning was the Word, and the Word was with God, and the Word was God.” And then: “The Word became flesh and dwelt among us.”Jesus is not merely a great prophet who came from God. He is truly divine.
The Holy Spirit Is God
The Holy Spirit is also not simply an impersonal force or God’s “energy.” The Spirit teaches. Guides. Speaks. Can be grieved. And in Acts 5, Peter tells Ananias that lying to the Holy Spirit is lying to God.The Spirit is personal.The Spirit is divine.
So Why Is This So Difficult?
Because we are trying to understand something about the nature of God using categories from our everyday experience. Everything we encounter ordinarily operates within our understanding of individual persons and individual beings. One human being is one person.Three human beings are three persons. So naturally we think: Three Persons must mean three Gods. But that conclusion assumes that God’s existence must operate exactly like ours. And Scripture tells us that God is fundamentally different from His creation.
The Trinity Is Not Three Gods Working Together. The Trinity is not: God + God + God = committee. Neither is it: Father = 33%Son = 33%Holy Spirit = 33%. Each Person is fully God.The Father is fully God.The Son is fully God.The Holy Spirit is fully God.Yet there is only one God.
And It Isn’t One Person Wearing Three Costumes
Another common explanation says: God sometimes appears as the Father. Sometimes as the Son. Sometimes as the Holy Spirit. But that doesn’t adequately represent Scripture. At Jesus’ baptism, the Father speaks from heaven while the Son is present and the Spirit descends.They are not simply one Person changing roles.They are distinct Persons.
Think “Unity,” Not Arithmetic
This is why I like the expression:Compound Unity. The word compound suggests something consisting of distinct elements united together. We must be careful, however, not to take the analogy too far. God is not a compound made up of three parts.The Father is not one-third of God.The Son is not one-third.The Spirit is not one-third.Rather, the three Persons share the one divine essence.
The Mystery Is Not the Same as a Contradiction
There is a difference between saying: “I cannot fully comprehend this.” and saying: “This is logically contradictory.” A contradiction would be: God is one God and three Gods in exactly the same sense.That is not what Christianity teaches.The Christian claim is: One divine being.Three divine Persons.The mystery is how this is possible. And Scripture does not give us a complete philosophical explanation of God’s inner nature. It reveals who God is.
Why Does the Trinity Matter?
This isn’t merely theological mathematics.
It affects how we understand salvation.
The Father sends the Son.
The Son willingly gives Himself for humanity.
The Holy Spirit applies God’s work in us.
The Father loves.
The Son redeems.
The Spirit indwells and transforms.
One God.
Perfect unity.
Distinct Persons.
The Christian Response
Perhaps our response to the Trinity should not be: “I must completely understand God.” Rather: “I will worship the God who has revealed Himself.” There will always be things about God that exceed our intellectual capacity. And perhaps that should not surprise us. If we could completely contain God within human understanding, He would be no greater than our understanding of Him.
Reflection
The Trinity teaches us something profound about God. God is not lonely. God is not a solitary being who needed creation because He needed companionship. Before creation existed…The Father, Son and Holy Spirit existed in perfect relationship. Perfect love. Perfect unity. Perfect communion.
And then God created. Not because He was incomplete. But because He chose to share His goodness with His creation.
Key Verse
“The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all.” — 2 Corinthians 13:14
Closing Thought
So…Does 1 equal 3? No. And 3 does not equal 1.
But that isn’t the Christian claim.The Christian claim is something much more precise: One God.Three Persons. Father. Son. Holy Spirit. Distinct.Yet united.Three Persons.One divine being. It is a mystery. But mystery does not mean nonsense. It means we have encountered something greater than the limits of our understanding.
And perhaps that is exactly what we should expect when we try to understand the infinite God with finite minds.We don’t reduce Him to something we can completely explain.We receive what He has revealed, and we worship.
Shalom.