Curious claims about Nephilim constantly trend online: aliens, hidden skeletons, Nimrod’s lineage, and even prophecy about the “days of Noah.”
This long-form guide separates what Scripture actually says from Internet myth, taps Second Temple background where it truly helps, and links to reputable sources so you can keep studying with confidence.
Quick answers up front
- Who are the “sons of God”? In the Old Testament the phrase most naturally refers to heavenly beings (see Job 1:6; 38:7), not humans; this undergirds the ancient “angelic” reading of Genesis 6. See NET Bible notes and Psalm 82 for the divine-council language. (Bible Gateway, NetBible)
- Who are the Nephilim? Pre-Flood figures linked to “mighty men of old” (Gen 6:4), with later echoes in giant clans (Anakim/Rephaim) opposed in Numbers–Deuteronomy–Samuel. See Bible Odyssey’s overviews. (Bible Odyssey)
- Our approach: Keep Scripture central, use Second Temple literature as background, and lean on responsible scholarship over sensational claims. For the ANE backdrop (apkallu), see Amar Annus’ study and Heiser’s summary. (Semantic Scholar, Drmsh)
1) “Are aliens Nephilim?”
Short answer: No. The Bible’s “sons of God” are spiritual beings, not extraterrestrials; and current scientific reviews report no evidence of visiting aliens. (Bible Gateway, NASA Science)
NASA’s 2023 independent study on UAPs concluded there is no conclusive evidence for an extraterrestrial origin and called for better data collection, a finding echoed by subsequent U.S. reviews. Read NASA’s report and coverage by mainstream outlets. (NASA Science, CBS News, Axios, AP News)
Biblically, the “sons of God” language in Job and the divine-council scene of Psalm 82 point to heavenly beings under God’s authority, not flesh-and-blood life from another planet. Jude 6 describes angels who “left their proper dwelling,” reinforcing a spiritual, not extraterrestrial, category. (NetBible, Bible Gateway)
Want the ANE backdrop that shaped Genesis 6? See the apkallu/Watcher connection argued by Amar Annus and summarized for pastors and students by Michael Heiser. This background clarifies why ancient Jews read the passage supernaturally without importing UFO lore. (Semantic Scholar, Drmsh)
2) “Was Nimrod a Nephilim?”
Short answer: No biblical text links Nimrod to Nephilim. He’s called a gibbor (“mighty one”) and a king-builder, not a giant. (Encyclopedia Britannica)
Read accessible, reputable summaries from the Society of Biblical Literature’s Bible Odyssey and TheTorah.com. These survey Nimrod as a Mesopotamian-flavored culture-hero figure and later tradition’s rebel-king, but not a Nephilim. (Bible Odyssey, The Torah)
“Gibbor” describes warriors as diverse as David’s elite soldiers; it does not equal “Nephilim.” Conflating the terms is a common Internet leap that respected reference works avoid. (Bible Odyssey)
3) “Did any Nephilim survive the Flood?”
Short answer: The Flood narrative states only Noah’s family survived. Post-Flood “giant” language reflects possible new episodes of rebellion, not survivors from the Ark era. (Reasons to Believe)
A concise treatment by Reasons to Believe argues from Genesis 6–7 and Jesus’ Flood references that pre-Flood Nephilim did not survive, and the “also afterward” of Genesis 6:4 signals similar later events or peoples, not stowaways. (Reasons to Believe)
Mainstream summaries (Bible Odyssey, BAS) trace later giant-clan language to the Anakim/Rephaim opposed in Numbers–Deuteronomy–Samuel, again without suggesting Ark-era carryovers. (Bible Odyssey, Biblical Archaeology Society)
4) “Are Nephilim demons?”
Short answer: Scripture does not explicitly teach the origin of demons. A widespread Second Temple view held that demons were the disembodied spirits of dead giants, a background idea known to early Jews and Christians; use it as context, not canon. (Bible Odyssey)
For careful orientation, see Bible Odyssey’s article on Demons and Unclean Spirits and Heiser’s work on Rephaim and the divine council. These resources explain the background tradition while distinguishing it from the Bible’s explicit teaching. (Bible Odyssey, Drmsh)
5) “Nephilim DNA” and “giant skulls”
Short answer: Viral images of “Nephilim skulls” are hoaxes, mislabels, or art projects. Major fact-checkers, science outlets, and historians have debunked them repeatedly. (Snopes)
Start with National Geographic’s breakdown of the famous “Arabian giant” photo hoax, then browse Reuters and Snopes roundups that catalog altered images and recycled legends. The 19th-century Cardiff Giant remains a classic American hoax, covered by Smithsonian. (National Geographic, Reuters, Smithsonian Magazine)
When a new “discovery” trends, you can usually find a rapid debunk tracing it to mammoth digs, Photoshop, or miscaptioned excavations. A few recent examples will show you the pattern. (Snopes)
6) “Giants in mythology” vs. the Bible
Short answer: The Bible’s language about Nephilim/Anakim/Rephaim overlaps with ancient giant traditions but remains its own theological story about human and supernatural rebellion. (Bible Odyssey)
For cultural bearings, see Britannica on the Greek Titans and Giants and on the Mesopotamian Anunnaki. These surveys show how many cultures cast primeval wars and “mighty ones” into their origin tales. The biblical authors engage that world while telling a Yahweh-centered story. (Bible.org, Renner Ministries, NetBible)
On the ANE matrix behind Genesis 6, read Amar Annus on the apkallu and compare with Heiser’s summaries. Even scholars who nuance Annus’ thesis agree that the background helps explain why Jewish readers took Genesis 6 in a supernatural sense. (Semantic Scholar, czasopisma.kul.pl, Drmsh)
7) “As in the days of Noah,” are the Nephilim coming back?
Short answer: No. Jesus’ phrase in Matthew 24 points to unexpectedness and moral apathy, not a predicted return of giants. (Verse By Verse Ministry)
Heiser’s brief piece pushes against this popular claim and shows how the context of eating, drinking, marrying, and not paying attention supports a sober reading about vigilance, not giants. Standard notes and commentaries follow the same line. (Verse By Verse Ministry, Britannica Kids)
8) What the New Testament actually echoes
The most direct NT callbacks are Jude 6 and 2 Peter 2:4, which refer to angels who left their proper domain and are now kept for judgment, and they link the episode to the days of Noah. These texts align with an ancient angelic reading of Genesis 6 without encouraging speculation beyond the text. (Bible Gateway)
9) Why this matters for discipleship
Genesis 6 sits inside the Bible’s unified story: human violence, corrupted wisdom, and God’s just response; in Christ, the powers are disarmed and the Spirit empowers holiness. You don’t need myths to take evil seriously, and you don’t need clickbait to trust the Bible’s clarity about sin, judgment, and grace. Keep Scripture central.
Keep studying: reputable starting points
- Text first: NET Bible notes on Job 1:6; Psalm 82; Jude 6 (divine council; angels). (Bible Gateway, NetBible)
- Second Temple background: Amar Annus on Watchers & apkallu; Heiser’s accessible summary for students and pastors. (Semantic Scholar, Drmsh)
- Giants in Israel’s story: Bible Odyssey entries on Nephilim, Giants, Og, Zamzummim; BAS overview. (Bible Odyssey, Biblical Archaeology Society)
- Nimrod (not a Nephilim): Britannica and Bible Odyssey; TheTorah.com’s historical treatments. (Encyclopedia Britannica, Bible Odyssey, The Torah)
- Debunk corner: NASA’s UAP report; AP/Smithsonian coverage; National Geographic; Reuters/Snopes fact checks. (NASA Science, AP News, Smithsonian Magazine, National Geographic, Reuters)
FAQ
Are the Nephilim simply “giants”? The word is debated, but Numbers 13 uses giant language and later texts speak of Anakim/Rephaim as formidable peoples; avoid overstating their size and stick to the text. (Bible Odyssey)
Do angels marry? Jesus says angels in heaven do not (Matt 22:30). Jude describes rebellious angels as leaving their proper dwelling, which is not the same as glorified angels in loyal service. (Bible Gateway)
Should Christians use 1 Enoch? As background literature, yes; as Scripture, no. Jude’s citation shows familiarity, not canon. Use it to understand how Second Temple Jews read Genesis 6. (Bible Odyssey)
What about “Nephilim DNA” claims? There’s no credible evidence; every viral “skull” or “grave” so far has been debunked as edited images, misidentified fossils, or deliberate hoaxes. (Snopes, National Geographic)
My thoughts
When we treat Genesis 6 as Scripture first and then let ancient context support it, we avoid two ditches: sensationalism and skepticism. The angelic reading is the oldest and best-attested, but the point is not to chase giants; it’s to recognize how human and supernatural rebellion magnify our need for Jesus and the Spirit’s power in a violent world.
