I think people have the Letter to Theodore all wrong. I don’t think it is simply private correspondence. I think it acts more like an encyclical letter, and that is why Clement makes Mark such a big deal. Assuming that Mark occupied the same foundational role in Alexandrian Christian life then that he occupies today, Clement cites him because he is appealing to apostolic authority. He is distinguishing his personal opinion from what he presents as authoritative decree.
The same principle operates in Quis Dives Salvetur. Clement is not merely offering his own “interpretation” of Mark. He invokes the authority of Mark’s gospel to determine how its account of the rich man must be understood. The distinction concerns the source of the judgment: Clement presents himself as explaining an authoritative teaching that already exists.
That distinction gives the references to Mark in To Theodore their significance. Naming Mark establishes the authority behind the gospel, the church entrusted with its preservation, and the tradition against which the Carpocratians’ claims must be judged.
The comparison with Quis Dives Salvetur deserves close attention. In §4.2, Clement introduces the Saviour’s words as:
ἑαυτῶν ἑρμηνέας γινομένους καὶ ἐξηγητὰς ἀσφαλεῖς
That is, “becoming their own interpreters and reliable expositors.” Clement grounds the explanation in the words themselves. After quoting the gospel passage, he identifies its source in §5.1:
Ταῦτα μὲν ἐν τῷ κατὰ Μάρκον εὐαγγελίῳ γέγραπται.
“These things are written in the Gospel according to Mark.” He then observes the agreement in meaning among the other acknowledged gospels.
Clement certainly performs interpretation. His argument, however, assigns decisive authority to the Saviour’s teaching as transmitted in the gospel. In §5.2–4, he insists that its meaning requires investigation appropriate to divine and mystical instruction. Its apparent simplicity cannot determine the limits of its meaning.
This is the distinction I propose for To Theodore: Clement’s explanation claims to disclose the authoritative meaning of a received text. His own ingenuity is not presented as the source of the teaching’s authority.
Mark’s position in Alexandria makes that appeal especially consequential.
The contemporary Coptic Orthodox Church explicitly understands its patriarchal succession as the See or Throne of Saint Mark. That modern understanding cannot simply be projected backward unchanged, but it identifies the kind of foundational authority at issue.
An ancient formulation appears in Eusebius. In Ecclesiastical History 2.16.1, Mark proclaims his gospel in Egypt and establishes churches in Alexandria. In 2.24.1, Annianus succeeds him in the administration of the Alexandrian community. Gospel, ecclesiastical foundation, and succession converge in Mark.
To Theodore makes a corresponding claim about textual custody. Mark’s writing is left to the Alexandrian church and remains under its protection, with its reading restricted to those admitted to the greater mysteries (I.28–II.2). The gospel is situated within a continuing ecclesiastical inheritance.
This is why, on the proposed reading, Clement references Mark openly. Mark is the seat of authority in the letter’s account of Alexandria. Identifying him explains whose tradition is being defended. Restrictions upon access to its contents do not require concealing the identity of the authority behind it.
The letter also distinguishes different kinds of statement. Clement qualifies his assessment of Mark’s preparation with an expression meaning “as it seems to me” at I.27. Elsewhere, he gives impersonal prescriptions: the opponents must be resisted; their claims must not be conceded; disclosure must be controlled (I.7–9; II.10–13). Personal assessment and directions governing conduct occupy distinguishable places in the argument.
That does not turn every prescription into a formal ecclesiastical decree. It does show why the letter’s voice deserves examination as an attempt to establish an authoritative response to a controversy.
The account of Carpocrates serves that purpose. He allegedly obtains a copy through a compromised Alexandrian presbyter and then corrupts its interpretation and contents (II.3–10). The story explains how opponents might possess recognizable material without possessing legitimate authority over the tradition.
Possession, transmission, and interpretation are separate questions. The letter places the right to resolve them within the Alexandrian inheritance associated with Mark.
But how securely do we know Clement’s own position within that inheritance?
His importance as a writer is evident. His precise institutional position is much less securely documented. The familiar description of Clement as the head of an established Alexandrian catechetical school can make the evidence appear considerably fuller than it is.
Epiphanius supplies a revealing example. In Panarion 32.6.1, he identifies:
“Clement, whom some call Clement of Alexandria, and others, Clement of Athens.”
He reports the two identifications without explaining their relationship. He does not distinguish birthplace from residence or supply an account of Clement’s Alexandrian office. The conventional reconstruction—born in Athens, subsequently active in Alexandria—reconciles the labels, but Epiphanius does not himself provide that biography.
Why does someone who knows Clement’s work leave such a basic matter unsettled? We do not have a source explaining his uncertainty. The chronological interval is also worth stating accurately. Epiphanius began the Panarion in 374 or 375, approximately 160 years after Clement’s conventionally dated death in 211–215. This was a comparatively short interval, yet the surviving notice already preserves unresolved identifications.
Epiphanius was acquainted with Clement as a literary authority: the surrounding discussion draws upon material preserved in the third book of the Stromateis (Panarion 32.4–6). His uncertainty therefore illustrates the difference between possessing an author’s writings and possessing a secure biography of their author.
Eusebius supplies important additional evidence. He connects Clement with Alexandrian catechetical instruction after Pantaenus (Ecclesiastical History 6.6.1). He also preserves Alexander’s description of Clement as a respected presbyter who strengthened the church and carried correspondence to Antioch (6.11.6). These notices establish teaching, standing, and ecclesiastical connections. They leave much about the extent and formal basis of his authority unexplained.
The historical difficulty is consequently more substantial than deciding which familiar institutional title to attach to him. Edward J. Creedy’s recent study argues that Eusebius presents a succession of Christian teachers rather than an unambiguous succession of heads of a formally constituted catechetical institution. The institutional reconstruction remains a matter requiring argument.
This uncertainty does not prove suppression or a concealed episcopate. It makes Clement’s own account of his authority especially valuable.
The surviving opening chapter of the Stromateis provides precisely such an account. Clement explains how he receives, selects, arranges, preserves, and communicates inherited teaching. Those activities closely resemble the activities attributed to Mark in the Letter to Theodore.
At Stromateis 1.1.11.1–3, Clement describes his composition as ὑπομνήματα: notes or memoranda preserving instruction received from earlier teachers. He connects that instruction with an apostolic inheritance associated with Peter, James, John, and Paul. His literary undertaking is grounded in what has been transmitted to him.
In To Theodore I.18–21, Mark arrives in Alexandria with his own and Peter’s memoranda. From these resources he supplements his earlier composition with material appropriate to advancement in knowledge. The further gospel results from editorial work upon inherited material.
Both accounts therefore place the writer between an earlier body of authoritative teaching and a later audience. His qualification consists in access to the inheritance and the capacity to transmit it appropriately. Producing a further composition can be an act of fidelity to what has been received.
The resemblance becomes more specific when Clement explains his editorial decisions. At Stromateis 1.1.14.2–3, he describes arranging recollections and deliberately omitting material. His expression is:
ἐκλέγων ἐπιστημόνως
“selecting with knowledge.”
The writer exercises informed judgment about what belongs in the composition.
Mark exercises corresponding judgment in To Theodore I.15–26. The earlier gospel selects material useful for the development of faith; the Alexandrian enlargement introduces material suited to further progress. Composition serves the capacities and needs of its intended recipients.
At the beginning of the Stromateis, Clement effectively occupies the authorial role attributed to Mark in the letter: the knowledgeable custodian who develops inherited material through selection and arrangement.
A further correspondence concerns the limits of writing. At Stromateis 1.1.14.2, Clement explains that his work does not undertake an adequate exposition of the reserved teachings; it serves recollection. At 1.1.13.2, he distinguishes personal transmission from committing something to writing. A written work participates in instruction without containing its entirety.
Mark’s more spiritual gospel likewise does not explicitly record the Lord’s ἱεροφαντικὴν διδασκαλίαν, “hierophantic teaching” (To Theodore I.22–24). An advanced composition can remain selective and require further interpretation.
The ethical justification for restraint is also comparable. Clement describes his deliberate omissions as:
οὔ τί που φθονῶν
“certainly not begrudging.”
His concern is that readers might misunderstand and suffer harm (Stromateis 1.1.14.3).
Mark’s preparation is similarly described as ἀφθόνως, “without grudging” (To Theodore I.26–27). Both accounts address the same difficulty: a generous teacher must communicate, yet responsible communication requires attention to the recipient’s capacity. Limiting disclosure can be part of fulfilling the duty to teach.
Clement then describes concealment as a feature of literary composition. At Stromateis 1.1.15.1, his writing will:
ἐπικρυπτομένη ἐκφῆναι
“make manifest while concealing.”
The text permits recognition without making everything immediately explicit. Mark’s arrangement likewise includes sayings whose interpretation leads the hearer into veiled truth (To Theodore I.24–26). In both accounts, the composition supports an interpretive movement beyond its immediately accessible surface.
The progression is explicit in Stromateis 1.1.15.2–3:
μυστήρια τὰ πρὸ μυστηρίων
“mysteries preceding mysteries.”
Preparatory instruction makes possible a further stage. That educational logic corresponds to the distinction between Mark’s earlier composition and the Alexandrian enlargement: material appropriate to the development of faith is followed by material suited to advancement in knowledge.
Finally, Clement explains why a written work needs a competent interpreter. At Stromateis 1.1.14.4, writing cannot answer questions beyond its contents. It needs assistance from its author or someone who has followed the same path. At 1.1.16.3, discovering truth through sustained effort similarly involves a suitable helper.
Clement performs that assistance in To Theodore. He supplies gospel passages as evidence and begins to explain their correct meaning; the surviving letter breaks off as he turns to the true interpretation (II.19–III.18). He occupies the interpretive position that the Stromateis says written compositions require.
These correspondences concern a connected account of authorship: inherited material, informed selection, purposeful arrangement, progressive instruction, restrained disclosure, and qualified interpretation. Mark provides an Alexandrian precedent for the kind of literary stewardship Clement describes undertaking himself.
The works differ in genre. The shared model is an author authorized by his relationship to received teaching. That model helps explain Clement’s voice in the letter even where his precise institutional position remains uncertain.
The comparison with Athanasius then helps explain how such a voice could function in ecclesiastical correspondence.
At To Theodore I.8–9, Clement qualifies the opponents’ possible possession of truth:
Εἰ γὰρ καί τι ἀληθὲς λέγοιεν
“For even if they should say something true …”
The sentence continues by denying that the lover of truth would consequently agree with them. A correct statement does not automatically confer authority upon its speaker.
Compare Athanasius, To the Bishops of Egypt and Libya §3:
Οὐδὲ γὰρ τὴν ἀλήθειαν λέγων ἀξιόπιστός ἐστιν ὁ πανοῦργος.
“For the deceiver is not trustworthy even when speaking the truth.”
Athanasius connects this principle with Christ’s silencing of demons whose identification of him was correct. Their truthful speech could provide an opportunity to introduce deception.
In §8, the principle becomes an instruction to his recipients:
κἂν τὰ ῥήματα τῆς ὀρθοδοξίας φθέγγωνται, μηδ’ οὕτως τοῖς λαλοῦσι προσέχετε.
“Even if they utter the expressions of orthodoxy, do not, even so, pay attention to the speakers.”
The warning applies to opponents who employ scriptural language.
The common argument concerns authority and reception. Apparently correct religious language is insufficient grounds for accepting the person or teaching that employs it.
The surrounding sequence strengthens the comparison. Theodore’s opening approves silencing the Carpocratians, refuses to grant them authority because they sometimes speak truth, and explains corruption through the mixture of truth and fabrication (I.2–15). Athanasius likewise joins silencing, truthful speech, and dangerous admixture in §3. The resemblance extends to the relationship among the arguments.
Theodore’s distinction between apparent truth and truth according to faith—including the expression commonly translated “true truth” at I.11—belongs within this concern. It is not an exact verbal parallel to Athanasius §§3 or 8. Its significance is that the mere presence of something true does not resolve whether the teaching containing it should be received.
Athanasius employs this argument to establish a common response to a doctrinal threat. Theodore’s opening can similarly be read as guidance intended for application beyond the immediate exchange.
The individual address to Theodore does not settle the question of audience.
Athanasius supplies a concrete example in the letter to Serapion preserved with Festal Letter XII. He sends material so that the brethren will learn through Serapion what they need to know. Concerning his instruction about the fast, he explains:
“for I have written this to each one”
The communication also supplies documentary evidence against Meletian claims. Serapion receives information that he is expected to use in instructing a community and answering its opponents. An individual recipient participates in a wider ecclesiastical exchange.
This provides a practical model for the proposed reading of Theodore. The named recipient can be the person through whom a broader audience receives, understands, or applies an authoritative judgment.
Another Athanasian letter supplies the complementary evidence about confidentiality. In Letter 54, concerning Arius’s death, §5, Athanasius directs Serapion to read the material to those who had raised the disputed question. He also restricts copying:
μηδενὶ μέντοι θελήσῃς ἐκδοῦναι τούτων ἀντίγραφον μηδὲ σαυτῷ μεταγράψαι
“Do not, however, agree to give anyone a copy of these, or transcribe them for yourself.”
The direction concerns the material sent with the letter, including the associated writing to the monks. Athanasius fears that readers will impose preconceived opinions upon the text and distort its meaning. Communication to an intended audience is permitted while reproduction remains controlled.
Together, the two Serapion letters establish two relevant practices: common instructions could be conveyed through individual recipients, and material intended to reach others could remain subject to restrictions on copying and disclosure.
This does not make every confidential letter an encyclical. It shows why confidentiality cannot establish that a letter’s purpose ended with its named recipient.
Theodore’s letter similarly differentiates the treatment of opponents from the instruction offered to Theodore. Its rules about disclosure lead into an answer supported by gospel quotations (II.10–20). That movement is intelligible as the preparation of a trusted intermediary who needs both the grounds for a judgment and instructions governing its use.
A comparison from Clement’s own period makes this ecclesiastical setting more concrete. Serapion of Antioch—distinct from Athanasius’s later correspondent—wrote to the community at Rhossus concerning the Gospel of Peter. Eusebius preserves extracts in Ecclesiastical History 6.12.3–6.
Serapion distinguishes apostolic authority from writings falsely attributed to apostles. Having obtained and examined the disputed gospel, he reports that much accords with the Saviour’s teaching while other material has been added. He indicates that he has identified the objectionable additions for his recipients.
Here an ecclesiastical writer intervenes in a controversy over a gospel carrying an authoritative name, assesses its contents, and communicates a judgment to those affected. The authoritative association is precisely what makes the disputed text consequential.
Theodore’s appeal to Mark belongs within that kind of controversy. Naming Mark identifies the foundation of the claim. Explaining the gospel’s transmission, custody, and proper interpretation determines who can legitimately appeal to that foundation.
The cumulative case therefore rests on several connected observations. The letter invokes Alexandria’s foundational gospel authority. Its writer occupies a role closely resembling the editorial and interpretive role Clement claims in the Stromateis. Its opening resembles Athanasius’s instructions for confronting doctrinal opponents. Its personal address and restrictions on disclosure are compatible with practices through which ecclesiastical judgments reached wider audiences.
An encyclical function nevertheless remains an inference. The surviving Theodore text contains no distribution list or explicit forwarding instruction. The parallels establish a historically intelligible model, not a surviving record of its circulation.
That model explains why the letter combines a personal addressee with general prescriptions, restricted disclosure with substantial explanation, and textual argument with an appeal to Alexandrian custody. It equips a recipient to defend a received tradition against rival appropriations.
Mark’s prominence follows from that purpose. Clement names Mark because the authority being defended is Mark’s authority, preserved within the Alexandrian church. His own task is to communicate the judgment that follows from it.
