Revelation Once Delivered: The Catholic Answer to Mormon Claims

These things we should all know. Especially for our children who are most vulnerable.  

“One of the most common questions Catholics face from our Latter-day Saint neighbors is this: if the Church is true, why has no new revelation been added to the Bible? The answer is both simple and profound…”

Mormons often challenge the Catholic Church, Christianity as a whole  by asking why the Church has no “new revelation.” Their own founder, Joseph Smith, wrote:

“We believe all that God has revealed, all that He does now reveal, and we believe that He will yet reveal many great and important things pertaining to the Kingdom of God.”
— Articles of Faith, 9

Later LDS prophets repeated this belief. President Spencer W. Kimball declared in 1977:

“We testify to the world that revelation continues and that the vaults and files of the Church contain these revelations which come month to month and day to day.”

For Catholics, the answer is simple yet profound: God has already revealed Himself once for all in Jesus Christ. Public revelation ended with the death of the last apostle, but the Holy Spirit continues to bring that one eternal truth alive in every heart. This reflection is written with both audiences in mind: for Latter-day Saints, to consider; and for Catholics, to meditate on why our faith holds Revelation complete — not silent.

Each soul created by God enters this world with a purpose — to encounter Him. From the moment we draw breath, we are given the opportunity to receive fresh illumination throughout our lives — not in the sense of inventing another gospel, but in the sense of personally awakening to the truth already revealed in Jesus Christ.

“For no prophecy was ever produced by the will of man, but men spoke from God as they were carried along by the Holy Spirit.”
— 2 Peter 1:21

A child, a man, and a woman all need a roadmap to resist their fallen nature. And what is this fallen nature? It is not simply the presence of weakness or temptation — it is the condition of not yet knowing God in His fullness. We were not created as puppets, but as free sons and daughters who must grow, stumble, and learn. In this journey, even our weakness becomes a teacher, because it drives us to seek the One who can heal us.

“O happy fault, O necessary sin of Adam,
which gained for us so great a Redeemer!”

God, in His mercy, gave us more than a book — He gave us His Church, a living community of believers, grounded on the apostles and safeguarded by the Holy Spirit. Public revelation ended with the death of the last apostle, but the Spirit continues to guide us deeper into the one deposit of faith. Through her sacraments, her teaching, and her life, we are disciplined and formed in love. And when we fail, we confess — both to one another through the Sacrament of the Church and personally to our God. Each time He reminds us how deeply we are loved. He smiles, puts His arm around us, and sends us forward again, learning more about love.

“So then, brothers and sisters, stand firm and hold fast to the traditions that you were taught by us, either by word of mouth or by our letter.”
— 2 Thessalonians 2:15

The Heart of Revelation

And what is the heart of this revelation?
It is not a system of rules, nor the invention of new scriptures. It is the greatest story ever told: the eternal love of the Father and the Son, who breathe forth the Holy Spirit.

The Father has loved the Son throughout all of eternity.
The Son has loved the Father throughout all of eternity.

That love is so real, so perfect, that it is not an idea or an emotion — it is a Person: the Holy Spirit.

This same Spirit is given to us, God’s adopted creation, as the supreme gift. God is not a solitude. He is an eternal communion of love — Father, Son, and Holy Spirit. And because love by its nature cannot be contained, it overflows into us.

We were created to be loved, because love itself cannot remain locked away. And all of this is revealed fully and forever in a man we call Jesus Christ.

“For in Him the whole fullness of deity dwells bodily.”
— Colossians 2:9

Let the Saints Speak

Saint Augustine reminds us:
“You have made us for Yourself, O Lord, and our heart is restless until it rests in You.”

Saint John of the Cross declares:
“In the evening of life, we will be judged on love alone.”

Saint Irenaeus testifies:
“The glory of God is man fully alive; and the life of man consists in beholding God.”

Saint Athanasius proclaims:
“The Son of God became man so that we might become God.”

That is, so that we might become sharers in His divine nature (2 Peter 1:4). Not gods in our own right — for that was the fall of mankind — but partakers of the divine life, drawn into the communion of Father, Son, and Holy Spirit. There we find our truest destiny: one God, one family. If you love your wife, your son, or your daughter — how much greater will that love be when it expands to embrace all in God?

God has already revealed Himself once for all in His Son. What we receive as “new” is not new doctrine or new scripture, but the same eternal truth becoming alive in our hearts. That is true revelation. It is all found in the Holy Bible, and it is also inscribed in our hearts by the Spirit.

Our fallen nature, then, is not the end of the story — it is the beginning of the search. It is the hunger of not yet fully knowing God, the ache that leads us toward Him. And in Christ, that hunger finds its fulfillment.

And this, my friend, is all the revelation a Christian will ever need.

“Beloved, although I was very eager to write to you about our common salvation, I found it necessary to write appealing to you to contend for the faith that was once for all delivered to the saints.”
— Jude 1:3

True Glory and Peace

“There, true glory will be found, where no one will be praised by mistake or by flattery.
There, true honor will not be denied to the worthy, nor granted to the unworthy.
There, peace will reign—where no one will feel resistance from within or without.
God Himself will be virtue’s reward. He gives virtue, and He promises Himself as its crown.”

“I shall be their God, and they shall be My people.”
— Ezekiel 37:27

This is the fulfillment of Saint Paul’s words:
“So that God may be all in all.”

In Heaven, God will be our only desire — and our every desire will be fulfilled.
We will contemplate Him without end, love Him without exhaustion, and praise Him without growing weary.

Better to Know the Planner Than the Plan

Lord, You are not impressed by knowledge alone.
A person could master all human learning and yet fail to know You — and remain empty.
Another could remain unaware of worldly learning, yet know You deeply — and be full of joy.

Which is better?
To own a tree and thank You for its blessings?
Or to know every detail about that tree — and fail to recognize it came from You?

The answer is clear:
The most important knowledge is knowledge of You, O Lord.
— Saint Augustine

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