Lactantius

← Encyclopedia

Lactantius — Lucius Caecilius Firmianus Lactantius, active around 300 CE — was a Latin rhetorician of North African origin who, after his conversion, became the most polished Christian apologist of his generation. Later readers, struck by the classical clarity of his prose against the rougher Latin of his contemporaries, gave him the name by which he is still known: the Christian Cicero.

His career ran straight through the empire’s last great persecution. The emperor Diocletian had summoned him to the eastern capital at Nicomedia to teach Latin rhetoric — an appointment from the center of imperial power, in a city where Latin was the language of administration in a Greek-speaking world. There, when the persecution of 303 broke, Lactantius lost his post and set about writing. The result was the Divine Institutes, a systematic defense of Christianity addressed not to the converted but to educated pagans — the first attempt to lay out the new religion as a coherent philosophy in the literary register such readers respected. In old age, under the changed sky of Constantine’s victory, he was appointed tutor to the emperor’s son Crispus, carrying his rhetoric from a court that had tried to extinguish the faith to one that had adopted it.

A North African rhetor at the eastern court

The life is sketched chiefly by Jerome, who places Lactantius among the pupils of Arnobius of Sicca, the apologist of proconsular Africa whose Adversus Nationes survives as a convert’s quarrel with the gods he had left. From that schoolroom Lactantius carried a rhetorician’s training and a convert’s distance from the cults around him. His early works are lost — a travel poem, an Account of a Banquet, a collection called the Grammarian — and what reaches us begins with the Christian writing of his maturity. The summons to Nicomedia placed him, by accident of office, at the exact spot where the assault on the church was planned: the same imperial residence from which Diocletian’s edicts of 303 went out, stripping Christians of rank, ordering the surrender of scriptures, and razing the church that stood within sight of the palace. Lactantius watched the machinery of persecution from inside the administration that ran it, and lost his chair to it. Jerome reports that he fell into such poverty that he wanted for necessities — a strange fate for a man the emperor had imported to teach the language of rule.

That vantage produced a second work, smaller and fiercer than the Institutes: On the Deaths of the Persecutors, written after 316, which tracks the emperors who had moved against the church and records, with a prosecutor’s relish, the ruin that overtook each. It is partisan history, shaped to a thesis — that the God of the Christians settles accounts with those who strike at his people — but it is also a firsthand source for the Tetrarchy, the Great Persecution, and the rise of Constantine, sitting beside Eusebius among the indispensable witnesses to the age. The man who had been ruined at Nicomedia ended at Constantine’s court in Trier, tutor to Crispus, his fortunes reversed with the empire’s.

The Divine Institutes

The Divine Institutes is the work on which his reputation rests. Earlier Latin apologetics had been occasional and combative — Tertullian a generation before had written in short, scalding bursts, asking what Athens had to do with Jerusalem and answering, in effect, nothing. Lactantius reversed the posture. His seven books, completed by about 313, are not a tract but an architecture: a survey of false religion and its origins, an indictment of pagan philosophy for grasping fragments of truth and missing the whole, then a constructive account of the true God, true worship, justice, and the providential ordering of the world, closing on the last things. The title echoes the Institutiones of the Roman jurists — an institutional handbook, the law of religion laid out in order for readers who knew what a systematic treatise looked like.

His model throughout is Cicero, whose dialogues on the nature of the gods and on duties supplied both the prose rhythm that earned Lactantius his nickname and the very questions he set out to answer better than Cicero had. The choice was strategic. Tertullian had written for Christians who already believed; Lactantius wrote for the cultivated pagan who would put a book down at the first barbarism of style or the first appeal to an authority he did not recognize. So Lactantius leaned, by his own admission, more on the testimony of classical authors than on the testimony of Scripture — a decision later theologians found suspect, but one calculated for an audience that would take Virgil and Cicero as authorities and the Hebrew prophets as foreign noise. At the center of the argument stands the Logos, the divine Word through whom the world was made and in whom it is held — a doctrine Lactantius presents not as a novelty smuggled in from Judea but as the thing the wisest pagans had been reaching for all along.

The method of pagan witnesses

What gives Lactantius his particular interest is the method of his argument. To persuade pagans, he reached for pagan authorities, holding that the wisest voices of the old world had themselves glimpsed the truths Christianity now proclaimed in full. He summoned the philosophers against the philosophers, quoting Plato and the Stoics where they had touched the truth and convicting them where they had stopped short. But his two most striking witnesses stood outside the schools entirely. Foremost he placed Hermes Trismegistus — the sage of Greco-Egyptian wisdom to whom a body of Greek philosophical and religious writing was ascribed — and the Sibyls, the prophetesses whose oracles circulated in collections of mixed Jewish, Christian, and pagan origin. He quoted both as if they confirmed, from beyond the borders of the church, the Christian account of God, creation, and the divine Word.

The strategy rests on a particular reading of history. If a pagan Egyptian sage of immense antiquity, and pagan prophetesses revered across the Mediterranean, had spoken of one supreme God, of a divine Son, of a coming judgment, then Christianity was not a recent eastern innovation but the recovery of a wisdom older than philosophy itself. The pagan reader was not being asked to abandon his ancestors’ learning but to follow it to its conclusion. This is the structure that the Renaissance would later name prisca theologia — an ancient theology running underneath the traditions, of which Christian revelation was the flowering — and Lactantius is one of the earliest authors to assemble it as an argument. For him Hermes belonged to a hoary Egyptian past; he took the Hermetic writings as the deposit of a sage roughly contemporary with, or older than, the founders of Greek thought, and treated their convergence with Christian doctrine as the convergence of independent witnesses.

The Hermetic citations and their consequence

The consequence outran his intention. Several Hermetic passages he drew on survive in their Greek wording only because he quoted them — fragments of the philosophical Hermetica embedded in his Latin where the originals were later lost or scattered. He thus became, against the grain of his own polemic, one of the channels through which the figure of Hermes Trismegistus reached the Latin West, and one of the patristic authorities — alongside Augustine and Cyril of Alexandria — whose respectful citation lent the figure weight it could not have claimed on its own. A pagan sage approvingly quoted by a Father of the church was no longer merely pagan; he was a witness the church had admitted to its own case.

This is the irony on which his long influence turns. When Marsilio Ficino translated the Corpus Hermeticum into Latin in 1463 — at the deathbed instruction of Cosimo de’ Medici, who had him set Plato aside to render Hermes first — the prisca theologia genealogy he placed before it, with Hermes at or near the head of the chain that ran down to Plato, drew its warrant precisely from authors like Lactantius. Ficino could cite a Father of the church who had treated the Egyptian sage as a prophet of Christian truth; the endorsement lent the whole revival the weight of an ancient and orthodox Christian name. Francesco Patrizi built an expanded Hermetic corpus into a Platonic-Hermetic philosophy he proposed to set in the place of Aristotle in the universities; Giordano Bruno made the Latin Asclepius — the Hermetic dialogue transmitted under the name of Apuleius, the North African Platonist whose own reputation as a magus had drawn him into the Hermetic orbit — the heart of a dreamed Egyptian reform. None of this would have carried the same authority without the patristic seal, and Lactantius had pressed that seal more warmly than almost any other Father.

The Sibylline material raised the same difficulty in reverse. Lactantius treated the Sibylline Oracles as genuine pagan prophecy independently confirming Christian claims; modern scholarship reads much of the surviving collection as the work of Hellenistic Jewish and later Christian authors writing in a pagan voice. The witnesses he called independent were, in part, already of his own household — Christian prophecy dressed in oracular hexameters and returned to him as confirmation from outside. The two pillars of his pagan testimony were, between them, a corpus he believed older than Moses and a corpus he believed untouched by the church, and both turned out to be neither.

The 1614 reckoning

The chronology that made the whole edifice possible held for twelve hundred years and then collapsed in a single chapter. In 1614 the Huguenot philologist Isaac Casaubon, writing in London under a commission from James I to refute Cardinal Baronio’s Catholic church history, turned twenty folio pages of his De rebus sacris et ecclesiasticis exercitationes XVI against the Hermetic writings. Working from the Greek text, he showed on philological grounds — late koine diction, vocabulary borrowed from the Greek Septuagint, Platonist and Stoic commonplaces that no pre-Mosaic Egyptian could have known, allusions that tracked Christian doctrine too closely to be coincidence — that the Corpus Hermeticum was a body of Greek pseudepigrapha composed in the early Roman Empire, somewhere in the second or third century CE, not the revelation of an immemorial sage.

Casaubon’s case turned, in part, on Lactantius himself. The citation pattern that had once been the argument’s strength became the evidence against it: Hermes is quoted with respect by Lactantius, by Augustine, by Cyril, by the later anthologists — and by no pagan writer of the classical age at all. A text that surfaces in the record only when Christian apologetics has motive to summon a pagan witness is not the oldest writing of antiquity but a late one, shaped for exactly the use the Fathers made of it. Baronio had leaned on Lactantius’s enthusiasm for Hermes as a herald of Christ; Casaubon turned that enthusiasm into a date. In the same Exercitationes he dismantled the Sibylline Oracles by the same method — the two great pagan witnesses of the apologetic tradition, Hermes and the Sibyls, demolished together. His son Méric Casaubon would carry the family’s philological assault on inspired-text claims into the next generation.

The redating did not end the Hermetic tradition; it relocated its texts. The prisca theologia chronology was shattered, but the figure of Hermes kept its hold — through Rosicrucianism, the Cambridge Platonists, alchemy, and the later esoteric currents, readers went on valuing the writings for what they said rather than for the antiquity Casaubon had taken from them. Modern scholarship has refined his verdict without overturning it: the surviving Hermetica are products of Greco-Roman Egypt of the first three centuries CE, drawing on genuine Egyptian priestly traditions while framed in Greek philosophical and Hellenistic-Jewish idiom. Lactantius had been wrong about the date and wrong about the independence of his witnesses; he had been right that the texts said something a Christian reader could recognize.

Scholarship and the texts

The Divine Institutes survives in full and is the indispensable primary document. The standard public-domain English remains William Fletcher’s translation in the Ante-Nicene Fathers, vol. VII (Buffalo: Christian Literature Publishing Co., 1886), edited by Alexander Roberts, James Donaldson, and A. Cleveland Coxe; it is freely available in the full Ante-Nicene Fathers text on Wikisource and, with the ancient places tagged, at ToposText. The Hermetic and Sibylline citations are woven through the work, most densely in the books on false religion and on the true God. The modern scholarly translation — with the Latin sources of every classical citation traced — is Anthony Bowen and Peter Garnsey, Lactantius: Divine Institutes, Translated Texts for Historians 40 (Liverpool University Press, 2003), reviewed in detail in the Bryn Mawr Classical Review. The companion historical work, On the Deaths of the Persecutors, is the source treated at its overview on Wikipedia and central to any account of the Great Persecution.

For the political and intellectual setting, the standard study is Elizabeth DePalma Digeser, The Making of a Christian Empire: Lactantius and Rome (Cornell University Press, 2000), which reconstructs the Institutes as an intervention in the religious politics of the Tetrarchy and argues that the pagan philosopher Lactantius answers is the Neoplatonist Porphyry. The philological reckoning that ended the Renaissance reading of his Hermetic witnesses is reconstructed in Anthony Grafton, “Protestant versus Prophet: Isaac Casaubon on Hermes Trismegistus,” Journal of the Warburg and Courtauld Institutes 46 (1983), 78–93, and expanded in his Defenders of the Text (Harvard University Press, 1991). The longer afterlife of the figure Lactantius helped legitimate — from Ficino through Casaubon and beyond — is traced by Florian Ebeling, The Secret History of Hermes Trismegistus (Cornell University Press, 2007), and Wouter Hanegraaff, Esotericism and the Academy (Cambridge University Press, 2012); Frances Yates’s Giordano Bruno and the Hermetic Tradition (1964) set the agenda these works correct.

He was not a systematic theologian, and the later Church judged some of his positions unsafe — his account of the divine persons sat awkwardly with the settlements that followed Nicaea, and the humanists who revived him prized him chiefly as a stylist, the Christian Cicero of the title rather than a master of doctrine. The longer mark he left lies elsewhere — in the testimony he gathered to prove his case, which carried the pagan sages he meant to refute forward into the tradition that would one day take them for its own.

→ In the library: Terry — The Sibylline Oracles (1899) · The Corpus Hermeticum (Mead) — I. Poemandres

→ Related: Hermes Trismegistus · Divination · Neoplatonism · Logos · Sibylline Oracles · Corpus Hermeticum · Prisca Theologia · Cicero · Isaac Casaubon · Tertullian · Apuleius · Arnobius · Christianity