The Deposit of Faith

"What is the deposit of faith and can the Church add new doctrines?"

3 Scripture passages2 objections answered2 Church Father quotes

The Short Answer

The deposit of faith is the complete body of revealed truth entrusted by Christ to the apostles, transmitted through Scripture and Sacred Tradition. The Church guards and interprets this deposit but cannot add to it.

Quick Overview

Jesus revealed everything necessary for salvation to His apostles. They passed it on through their teaching (Tradition) and their writings (Scripture). This complete package is called the 'deposit of faith'—like a valuable deposit entrusted to a bank for safekeeping. The Church guards this deposit; she can't add new content. When the Church defines a doctrine, she's not inventing something new but clarifying what was always there. It's like a jury finding facts—they don't create the facts, they recognize what was true all along. That's why dogmas, once defined, can't change—they're recognizing eternal truth.

Biblical Evidence

What the Scriptures say

1 Timothy 6:20

"O Timothy, keep that which is committed to thy trust, avoiding the profane novelties of words."

Why This Matters

Paul speaks of something 'committed' or 'deposited' to Timothy's trust—the deposit of faith to be guarded.

2 Timothy 1:14

"Keep the good thing committed to thy trust, by the Holy Ghost, who dwelleth in us."

Why This Matters

Again Paul refers to the deposit ('good thing committed')—preserved by the Holy Spirit's help.

Jude 1:3

"Dearly beloved... it was needful for me to write unto you: to beseech you to contend earnestly for the faith once delivered to the saints."

Why This Matters

The faith was 'once delivered'—complete from the beginning, to be defended and preserved.

What the Church Teaches

Official Catholic doctrine

The Catechism teaches that 'the Christian faith cannot accept 'revelations' that claim to surpass or correct the Revelation of which Christ is the fulfillment' (CCC 67). Public revelation ended with the apostles; the Church develops understanding but not content.

Common Objections

Questions answered

Early Church Fathers

What the first Christians believed

St. Vincent of Lérins

434 AD

"The same doctrine which was received before must be handed down: that gold which you received, that same gold give back... not lead instead of gold, not brass instead of gold."

— Commonitorium, 22

St. Irenaeus

c. 180 AD

"The Church... has received from the apostles and their disciples this faith... This faith, having been received from the Church, we guard."

— Against Heresies, 1.10.1

Councils

Apparitions

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