When people search Genesis 6:1–4 for clarity on the sons of God, the daughters of men, and the Nephilim, they often meet Second Temple ideas.
Eusebius stands out because he connects that biblical story to the pagan myths of his world and argues they are garbled memories of a real, older history. (ToposText)
Who was Eusebius?
Eusebius (c. 260–339) became bishop of Caesarea Maritima around AD 314 and is best known as the “Father of Church History” because of his Ecclesiastical History.
He also wrote apologetic works like the Praeparatio Evangelica, arguing for the truth and antiquity of the biblical story against Greek religion and philosophy. (Encyclopedia Britannica, New Advent)
The passage you need from Praeparatio Evangelica 5.4
Here’s the heart of Eusebius’s argument, in his own words, with short excerpts:
“And this argument is still further confirmed by Plutarch, in the passage where he says that the mythical narratives told as concerning gods are certain tales about daemons, and the deeds of Giants and Titans celebrated in song among the Greeks are also stories about daemons, intended to suggest a new phase of thought.
Of this kind then perhaps were the statements in the Sacred Scripture concerning the giants before the Mood[flood], and those concerning their progenitors, of whom it is said, ‘And when the angels of God saw the daughters of men that they were fair, they took unto them wives of all that they chose,’ and of these were born ‘the giants the men of renown which were of old.’
For one might say that these daemons are those giants, and that their spirits have been deified by the subsequent generations of men, and that their battles, and their quarrels among themselves, and their wars are the subjects of these legends that are told as of gods. Plutarch indeed, in the discourse which he composed On Isis and the gods of the Egyptians, speaks as follows word for word:
‘THEY therefore do better who think that the incidents recorded concerning Typhon and Osiris and Isis refer to sufferings neither of gods nor of men, but of certain mighty daemons… For various degrees of virtue and vice are found in daemons just as in men.’” (ToposText)
Eusebius then quotes Plutarch’s On Isis and Osiris to show Greeks themselves sometimes explained their gods as daemons rather than true deities. (ToposText)
What Eusebius is doing
Eusebius reframes pagan mythology as a distorted echo of biblical history, arguing that tales about Giants and Titans are actually stories about daemons connected to the Genesis 6 rebellion. (ToposText)
In simple terms, he proposes three linked claims:
- Sacred Scripture speaks of angels taking women and of giants being born. (ToposText)
- Greek stories about gods, Titans, and heroes are really about daemons, not true divinities. (ToposText)
- Over time, people deified the spirits of these giants, turning their memories into myths. (ToposText)
Key terms made clear
In Greek sources, daimones could be good or bad spirit-beings, but Eusebius treats pagan daemons polemically as deceptive powers behind idolatry. (ToposText)
In Genesis 6, the sons of God are read in the angelic sense, the daughters of men are human women, and the Nephilim are usually taken as giant offspring or mighty figures of old.
For Eusebius, the leap from angels to daemons reflects how later cultures remembered and renamed the same fallen beings and their legacy. (ToposText)
How Eusebius reads Genesis 6
Eusebius cites the wording “angels of God saw the daughters of men” to anchor the angel view, then links the giants to the surge of pagan legends. He is not inventing the idea; he is systematizing it within a Christian apologetic that undermines idolatry. (ToposText)
This reading harmonizes with how early Christians heard Jude 6 and 2 Peter 2:4, where angels who sinned are mentioned alongside the days of Noah without retelling the backstory.
For Eusebius’s audience, the backstory lived in a shared world of Second Temple interpretations, which he redeploys against paganism. (ToposText)
Eusebius and Plutarch: why the comparison matters
Plutarch can say that the sufferings of Isis and Osiris are about “mighty daemons,” not about literal gods, showing that thoughtful pagans already demoted many deities to spirit-beings. Eusebius capitalizes on this to argue that Greek myths are misremembered accounts of rebellious spirits and their giant offspring. (ToposText)
This move lets him say that the Bible is the oldest and most reliable frame for understanding corrupted religious memories across the nations. (ToposText)
Where this sits among other ancient voices
Jewish and Christian writers near Eusebius often read Genesis 6 in an angelic way, though they explained details differently. Philo of Alexandria could equate Moses’s angels with what philosophers called daemons, showing how terms overlapped in the wider world. (JASON COLAVITO)
Christian authors like Josephus, Athenagoras, and Irenaeus also connected pre-Flood corruption to angelic transgression, even if they emphasized different moral outcomes such as idolatry, sorcery, or cultural decay.
Eusebius’s unique twist is the explicit mapping of Greek myths to a biblical past through the category of daemons. (ToposText)
How this helps you read the Bible
Eusebius is not adding to Scripture; he is using a common ancient reading to answer the question of why the world’s religions look similar yet stray from truth. He argues that the line from Genesis 6 to later myth runs through the activity of fallen spirits, which Jude and Peter treat as part of the moral background of the Flood. (ToposText)
This does not require embracing every later legend; it invites a Bible-first approach that recognizes how memory, myth, and idolatry can warp real events.
It also cautions us to prize the Creator above created powers, names, and stories that draw hearts away from God. (ToposText)
A fair word on the Sethite view
Later Western tradition, especially after Augustine, often read the sons of God as the line of Seth and the daughters of men as the line of Cain. That view keeps attention on unequal yoking and avoids questions about angelic embodiment.
Eusebius’s project reflects an earlier world where the angel reading was normal and useful for exposing pagan errors, yet Christians today should still weigh both views with Scripture foremost. (ToposText)
What to notice in Eusebius’s method
He treats the Bible as older than the myths and therefore as the key to interpreting them, not the other way around. (ToposText)
He is comfortable citing pagan authorities like Plutarch to show that even non-Christians sometimes recognized their “gods” as daemons. (ToposText)
He wants readers to see idolatry as a spiritual deception tied to rebellious beings whose stories survived as legends of giants and heroes. (ToposText)
My thoughts
Eusebius gives modern readers a helpful lens: instead of treating myth as rival truth, he treats it as memory in need of Scripture.
That approach resists sensationalism, yet it takes the supernatural seriously and explains why Jude and Peter could speak briefly about sinning angels without confusing their audience. (ToposText)
