Two Leos, Two Paths

A Doctrinal Drift Toward Apostasy

Two Leos, Two Paths: From Leo I’s Defense of Biblical Truth to Leo XIV’s Embrace of the Augsburg Confession — A Doctrinal Drift Toward Apostasy

As someone who loves Scripture and Church history, I’ve been reflecting on the stark contrast between two popes who share the name “Leo.” One was a sainted guardian of biblical orthodoxy who fought to preserve the faith once delivered. The other, the first American pope, has — in less than a year — taken steps that appear to leave that legacy behind, most notably by elevating the Augsburg Confession as potentially “Catholic” and a shared foundation for unity.

This isn’t minor ecumenism. It’s a doctrinal shift that risks turning the bride of Christ into something unrecognizable. Let’s compare the two Leos, dig into the Augsburg Confession itself, and see how this move contributes to the growing sense of apostasy and blasphemy in parts of the Church.

    Pope Saint Leo I: The Great Defender of Biblical Orthodoxy

Pope Leo I (r. 440–461 AD) reigned during barbarian invasions, doctrinal chaos, and the collapse of the Western Roman Empire. He is remembered as a bulwark of orthodoxy.

- Core Achievement: The Tome of Leo  

  In 449 AD, Leo wrote his famous Tome to refute Eutyches’ Monophysitism (the heresy that Christ’s two natures — divine and human — were blended into one). The Tome was read at the Council of Chalcedon (451 AD), where bishops acclaimed: “Peter has spoken through Leo!” It defined Christ as one person in two natures — fully God, fully man, without confusion, change, division, or separation. This became the Chalcedonian Definition, a cornerstone for Catholics, Orthodox, and Protestants.  

  “For the one and the same is truly the Son of God and truly the Son of Man… Each nature performs what is proper to it in communion with the other: the Word performing what belongs to the Word, and the flesh carrying out what belongs to the flesh.” (Tome of Leo)

- Approach to Doctrine: Leo was Scripture-first. He constantly quoted the Bible (John 1:14, Phil 2:6–8, Heb 2:14–17) and rejected any philosophy or tradition that overrode the Word. He fought heresies with precision, not compromise, and reformed clergy to live holy lives grounded in Scripture.

- View of Unity: Unity was in truth, not vagueness. He preserved the faith once delivered (Jude 1:3) and refused to blend covenants or downplay differences.

Leo I’s legacy: He guarded the Church from drift, ensuring the gospel of Christ’s two natures remained pure.

   Pope Leo XIV: The First American Pope & the Elevation of the Augsburg Confession

Born Johnathan David Smith in Chicago in 1948, Leo XIV was elected in May 2025 after Pope Francis’s death. He took the name “Leo” to honor Leo I’s legacy of unity and defense of faith. But his early pontificate has been marked by aggressive ecumenism and doctrinal softening.

- Core Action: Elevation of the Augsburg Confession  

  During the 2026 Week of Prayer for Christian Unity, Cardinal Kurt Koch (Dicastery for Promoting Christian Unity) called the Augsburg Confession (1530, the core Lutheran document) a “stellar ecumenical confession of faith” that deserves “consideration as Catholic.” Leo XIV has supported this view publicly, framing it as a “shared foundation” for unity with Protestants.

- What the Augsburg Confession Actually Says 

  The Augsburg Confession (written by Philipp Melanchthon) was presented to Emperor Charles V at the Diet of Augsburg in 1530. It affirms core Reformation doctrines:  

  - Justification by faith alone (Article IV)  

  - Scripture as the ultimate authority (implicit in rejecting tradition equal to Scripture)  

  - Rejection of papal authority over the Church (Article XXVIII)  

  - Rejection of purgatory, indulgences, and the Mass as a sacrifice (Articles XXIV–XXVII)  

  These are not minor differences. The Council of Trent (1545–1563) explicitly condemned them as heretical (e.g., Session 6, Canon 9: “If anyone says that by faith alone the impious is justified… let him be anathema”).

- Leo XIV’s Shift: By elevating the Augsburg Confession as potentially “Catholic,” Leo XIV appears to reverse Trent or at least downplay its anathemas. This is a doctrinal shift of historic magnitude — treating a document that rejects papal authority and core Catholic teachings as a shared foundation.

    The Doctrinal Drift: From Leo I’s Tradition to Leo XIV’s Compromise

Leo I established traditions of Scripture-first orthodoxy and unity in truth. Leo XIV’s elevation of the Augsburg Confession seems to leave that behind:

- Leo I: Defended Christ’s two natures without confusion (Tome/Chalcedon).  

  - Leo XIV: Downplays “theological controversies” — risks blurring core doctrines for ecumenism (e.g., justification by faith alone vs. faith + works).

- Leo I: Fought heresies with precision (Monophysitism, Nestorianism).  

  - Leo XIV: Elevates Augsburg Confession — a document Trent condemned — as potentially “Catholic,” risking heresy by implying Reformation teachings are compatible without change.

- Leo I: Reformed clergy for holiness and biblical preaching.  

  - Leo XIV: Focuses on interfaith gestures (e.g., joint Anglican services, throne for Anglican king in Catholic basilica) — risks blending covenants (Isaac/Ishmael), perverting God’s promise (Gal 4:28–31).

The outcome? A Church increasingly marked by apostasy (departure from truth once delivered, 2 Thess 2:3) and blasphemy (speaking evil against sacred things by twisting covenants, Matt 12:31). When leaders say “leave behind controversies,” they’re effectively saying the Reformation divides (Scripture alone, faith alone) “lost their reason” — a direct attack on biblical fidelity Leo I would have rejected.

 The Blasphemous Apostate Church is the Outcome

Leaving Leo I’s traditions (Scripture as foundation, unity in truth) leads to:

- Apostasy: Abandoning sound doctrine (2 Tim 4:3–4) for a “one faith” that merges incompatible truths.  

- Blasphemy: Equating Ishmael/Isaac lines perverts God’s covenant (Rom 9:7–9, Gal 4:21–31) — calling what God separated “one.”

- Remnant call: True bride is spotless (Eph 5:27) — but the apostate church is blemished by compromise. The remnant holds to the Word alone (Rev 12:17).

Jesus warned: “Many false prophets shall rise, and shall deceive many” (Matt 24:11).  

The shift is real.  

The apostasy is here.  

But the Father preserves His own.

Deus Vult

Semper Fi

Ripper ‘91