Why the Trinity Matters
May 29, 2026
This week on the Christian calendar is Trinity Sunday. I’ve enjoyed reflecting on the mystery of our triune God and why this doctrine matters for Christian faith and worship.
What is the doctrine of the Trinity?
The Global Methodist Catecheism in Question 3 asks, “What is the mystery of the Trinity?”
The answer is: God is Father, Son, and Holy Spirit, distinct but inseparable, eternally one in essence in power.
Why does the doctrine of the Trinity matter?
There is no way a blog post could cover all there is to say about the Trinity. You could be a theologian and spend the rest of your life studying the depth of this mystery.
If the Trinity is mysterious and somewhat difficult to understand, why study it anyway?
For me, it comes down to this: I want to know God well.
I want to know God on the terms God has chosen to reveal Himself through.
McCall and Vickers in Love Divine:A Wesleyan Systematic Theology put it this way:
“To be candid, there is no such verse (or set of verses); there is no explicit statement that God is a Trinity. Instead, what we find is a deep and broad biblical basis for the doctrine of the triune God. For we have clear and strong biblical witness to the oneness of God, we have richly variegated biblical evidence of the full divinity of the Father, Son, and Holy Spirit, and we have equally robust and compelling biblical evidence for the personal distinctions of the Father, Son, and Spirit. Putting these together leads us to the doctrine of the Trinity.”
My hope is my relationship with God is of course rooted in my understanding and experience but first and foremost aligned with the biblical witness and evidence as well as our Church’s historical understanding.
If not, we run the risk of not fully understanding, enjoying, and celebrating who God is.
In the name of the Father, Son, and Holy Spirit. Amen.
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About David Wesley Donnan
I write online about Methodism, devotional insights, and personal reflections. My primary goal is to organize my thoughts and explore meaningful topics. Along the way, I hope my writing inspires and encourages others on their journey.
David Donnan 