Here’s more
The first is that Vicarius Filii Dei, or “Vicar of the Son of God,” is not now, nor has it ever been, a title of the bishop of Rome. The second problem is that virtually no one, including many unsuspecting lay Catholics, knows that this papal “title” is a fabrication. To an untrained ear, it sounds enough like one of the pope’s real titles, Vicarius Christi (Vicar of Christ), to pass the test. Unfortunately for those who traffic in this particular piece of pope fiction, the real title, Vicarius Christi, adds up to only a measly 214, not the infernal 666. In fact, none of the pope’s official titles, such as Servus Servorum Dei (Servant of the Servants of God), Pontifex Maximus (Supreme Pontiff), or Successor Petri (Successor of Peter), will add up to 666. That’s why you never see any of them used by anti-Catholics.
source:
envoymagazine.com/backissues/2.2/mar_apr98_coverstory.html
While I agree that this is not a common title of the pope, to say that it is a fabrication is maybe inaccurate. There was a specific document from Decretum Gratiani which was called “The Donation of Constantine”. In this Constantine hands over a great deal of wealth, property and power to the Church. The document has been shown to be a forgery, but certainly if it was forged, it was forged in the interests of the Church, not Constantine.
From the “Donation”:
“Utile iudicavimus una cum omnibus satrapis nostris, et universo senatu optimatibusque meis, etiam et cuncto populo Romanae gloriae imperio subiacenti, ut sicut B. Petrus in terris
vicarius Filii Dei esse videtur constitutus, ita et Pontifices, qui ipsius principis apostolorum gerunt vices, principatus potestatem amplius quam terrena imperialis nostrae serenitatis mansuetudo habere videtur, concessam a nobis nostroque imperio obtineant, eligentes nobis ipsum principem apostolorum vel eius vicarios firmos apud Deum esse patronos.”
The text in English and Latin:
history.hanover.edu/texts/vallapart1.html
An article about the “Donation” in Wikipedia:
en.wikipedia.org/wiki/Donation_of_Constantine
An article about the claim of this title in WIkipedia:
en.wikipedia.org/wiki/Vicarius_Filii_Dei
I agree 100% that this title is not one that the pope uses today, and also that it doesn’t appear on his tiara. I also agree that this business of adding up the letters to make 666 is ridiculous. But, all of that said, the title itself is not incorrect through simple logical deduction:
The pope is the Vicar of Christ
→ Christ is the Son of God
–>The pope is the Vicar of the Son of God.
I think it is important to argue against this claim by Protestants in a more direct way, which is to say that the title is correct in meaning but never used by any pope. Further, claims from Protestants saying that it is printed on one of the papal tiaras have never been substantiated. And finally, that the only known source of this statement is a document which has been proven to be a forgery.