HistoricalChristian.Faith

Irenaeus on the Nephilim

Dates: c. 202 Summary: Irenaeus holds the angelic reading of Genesis 6: angels united with the daughters of mankind and fathered sons who, "for their exceeding greatness," were called giants. He blames these angels for spreading wicked teachings (sorcery, cosmetics, idolatry) across the earth, and he treats their union with humanity as the very reason God brought the flood.

Claims & evidence

Angels were united with the daughters of mankind and begat giants

…illicit unions took place upon the earth, since angels were united with the daughters of the race of mankind; and they bore to them sons who for their exceeding greatness were called giants. And the angels brought as presents to their wives teachings of wickedness, in that they brought them the virtues of roots and herbs, dyeing in colours and cosmetics…and all sorcery and idolatry hateful to God; by the entry of which things into the world evil extended and spread…Until judgment came upon the world from God by means of a flood…Noah alone being found righteous.

— The Demonstration of the Apostolic Preaching, Sections 18-19, source. Irenaeus links the angelic union to the corruption of the earth and to the necessity of the flood, with only Noah remaining righteous.

The angels that sinned had commingled with the pre-flood race

…in the days of Noah He justly brought on the deluge for the purpose of extinguishing that most infamous race of men then existent, who could not bring forth fruit to God, since the angels that sinned had commingled with them…

— Against Heresies 4.36.4, source. Here Irenaeus repeats the angelic reading in the context of God's righteous judgment, explaining the flood as a response to the commingling of sinning angels with humanity.

"Titan" as a candidate for the name of 666

Discussing the number of the Beast (Rev 13:18), Irenaeus offers Teitan/Titan as the most credible of his candidate names — and the word he reaches for is the Titan/giant word:

Teitan too… among all the names which are found among us, is rather worthy of credit. For it has in itself the predicted number, and is composed of six letters, each syllable containing three letters… Among many persons, too, this name is accounted divine, so that even the sun is termed "Titan."

— Against Heresies 5.30.3, source. Irenaeus does not dogmatize ("I will not… make any boast"), preferring to await fulfilment; but his leading guess for the Antichrist's name is the very term for the giants of pagan myth — the link De Young draws between the Antichrist and the Titan/Nephilim tradition. (The Greek Titánes are the LXX-adjacent "giants"; 2 Samuel 5:18, 22 LXX even renders the Rephaim valley as the "valley of the Titans.")

Notes

• Irenaeus makes the "giants" the direct offspring of the angelic union, tying the Nephilim to the angelic interpretation rather than to a human Sethite line.
• Like Justin, he connects the fallen angels to the spread of sorcery and idolatry, framing the flood as divine judgment on the resulting corruption.
• Lead (per De Young, Lord of Spirits). Irenaeus presents the angelic reading not as private opinion but as the apostolic preaching (the work's title), and he is "the spiritual grandson of St. John the Evangelist" (taught by Polycarp, John's disciple) — used to argue the angelic reading has apostolic pedigree.
• Titan = 666 — now verified. De Young's claim that Irenaeus proposed "Titan" as a reading of the name of 666 is confirmed against Against Heresies 5.30.3 (quoted above); it ties the Antichrist to the Titan/giant tradition.