Ask a room full of Christians who the “sons of God” were in Genesis 6 and you will get three different answers and one uncomfortable silence. Angels who left heaven to marry human women. Giants called Nephilim roaming the earth before the flood. A flood sent, in part, because of it. Most believers have heard the phrase without ever reading the four verses it comes from, and the passage is stranger and more consequential than the Sunday school version suggests.
Quick Answer
Genesis 6:1-4 says “sons of God” came to human women and their offspring became the Nephilim, “mighty men who were of old, men of renown.” Jude 1:6 and 2 Peter 2:4 both describe angels who sinned and were bound in chains awaiting judgment, language that lines up with this event. The strongest reading, supported by how “sons of God” is used elsewhere in the Old Testament, is that these were fallen angels, not merely a rebellious human bloodline.
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What Genesis 6 actually says
The text is short and it does not soften itself. “The sons of God saw that the daughters of humans were beautiful, and they married any of them they chose… The Nephilim were on the earth in those days, and also afterward, when the sons of God went to the daughters of humans and had children by them. They were the heroes of old, men of renown” (Genesis 6:1-4).
Whatever this event was, Moses places it immediately before the flood narrative as part of the reason God’s patience ran out. Genesis 6:5 follows directly with “every inclination of the thoughts of the human heart was only evil all the time.” The text treats the sons-of-God event as a real historical hinge point, not a poem or a footnote.
Who are the “sons of God”? Two views
Bible teachers land in two camps here, and both deserve a fair hearing before picking one.
The first is the Sethite view. It reads “sons of God” as the godly line of Seth intermarrying with the ungodly line of Cain, blurring the two bloodlines until corruption was total. It has the appeal of avoiding angels entirely and keeping the story fully human.
The second is the fallen angels view. It reads “sons of God” (Hebrew, bene ha elohim) as a title for angelic beings who abandoned their assigned place to take human wives, producing offspring described as Nephilim, a Hebrew word usually rendered “giants” or “fallen ones.”
The deciding factor is usage. “Sons of God” is not a phrase Genesis invents and never uses again. It shows up three more times in the Old Testament, and every other time it refers unambiguously to heavenly beings in God’s court: “the sons of God came to present themselves before the Lord, and Satan also came among them” (Job 1:6; repeated in Job 2:1), and “the morning stars sang together and all the sons of God shouted for joy” at creation (Job 38:7). Nowhere in the Old Testament does the phrase describe a merely human, godly bloodline. That consistency is why the fallen angels reading carries the strongest textual weight, even though the Sethite view remains a sincere, defensible position among conservative scholars.
The Textual Case
Same phrase, same author, same meaning
Job and Genesis sit inside the same Hebrew canon using the same technical term for the same category of being. A reader is not free to let “sons of God” mean angels in Job three separate times, then switch its meaning to ordinary humans the one time it shows up in Genesis, without a strong reason from the text itself. Genesis 6 gives no such signal. Pairing “sons of God” against “daughters of humans” as two distinct categories argues for two distinct kinds of being, not two human family lines that would ordinarily just be called “men” and “women.”
Jude, 2 Peter, and the judgment of angels
The New Testament does not leave Genesis 6 stranded in the Old Testament. Two separate epistles describe a specific group of angels judged for a specific offense.
Jude writes, “the angels who did not keep their positions of authority but abandoned their proper dwelling, these he has kept in darkness, bound with everlasting chains for judgment on the great Day” (Jude 1:6). Peter says nearly the same thing: “God did not spare angels when they sinned, but sent them to hell, putting them in chains of darkness to be held for judgment” (2 Peter 2:4). Both writers use the same picture: angels who left the place assigned to them, now bound and awaiting a future judgment rather than already condemned.
Neither Jude nor Peter names Genesis 6 outright, but “abandoned their proper dwelling” reads as a direct echo of angels leaving heaven for earth. Jude sets that verse right next to a reference to Sodom’s sexual immorality, suggesting a specific, severe transgression, not generic angelic pride.
Genesis 6 is not a strange footnote at the margins of Scripture. It is the reason the New Testament gives for angels currently in chains.
How were there Nephilim after the flood?
This is the question that trips people up, and it deserves a straight answer instead of a dodge. If the flood wiped out everyone except Noah’s family, how does Numbers 13:33 have the twelve spies reporting, “we saw the Nephilim there… we seemed like grasshoppers in our own eyes, and we looked the same to them” (Numbers 13:33), centuries after the flood, in the land of Canaan?
Genesis 6:4 hints at the answer: the Nephilim were on the earth “in those days, and also afterward.” The text never claims the flood ended the phenomenon, only that first generation. The most straightforward reading is that the same transgression recurred on a smaller scale, producing another line of giants such as the Anakites, of which the sons of Anak the spies feared were the remnant. A more cautious reading treats “Nephilim” in Numbers 13 as a description rather than a bloodline claim, the spies reaching for the most terrifying comparison available. Scripture does not settle which is correct, and honesty requires saying so rather than forcing an answer the text does not give.
Read the text before the tradition
Start with Genesis 6:1-4 itself, not a documentary or forum thread. Most confusion comes from meeting the theory before the verses.
Let cross-references settle the vocabulary
Job’s three uses of “sons of God” are the control group. They show what the phrase means everywhere else in the Hebrew Bible.
Hold the uncertain parts loosely
The identity of the sons of God has good textual support one direction. The post-flood Nephilim question does not have a definitive verse. Confidence should track the evidence, not the other way around.
Why this actually matters
This is not trivia for prophecy conferences. Genesis 6 tells Christians something important about spiritual rebellion: it is not confined to the human heart. Angels, created with real freedom, can abandon their assigned place too, and Scripture treats that as a real, judged, historical event rather than a metaphor for human sin.
It also reframes the flood. Genesis 6 places a specific, cosmic-level violation directly before that judgment, a reminder that the spiritual realm is not a passive backdrop to human history. It presses into it, for good and for ill, and Scripture expects believers to take that seriously rather than explain it away.
Key takeaway
Genesis 6:1-4 describes “sons of God,” most consistently identified elsewhere in the Old Testament as angelic beings, fathering the Nephilim with human women. Jude 1:6 and 2 Peter 2:4 confirm a group of angels judged and bound in chains for a comparable offense. The post-flood reappearance of Nephilim-like giants in Numbers 13:33 is real but less certain in its mechanism. Scripture is clear on the core claim and appropriately quiet on the details, and that distinction is worth preserving rather than flattening in either direction.
Frequently asked questions
Were the Nephilim really giants?
The Hebrew word Nephilim is typically translated “giants” or “fallen ones,” and later biblical references to their descendants, such as the Anakites the spies feared in Numbers 13:33, consistently describe them as men of unusual size and strength.
Does the Bible actually say angels can sin?
Yes. Jude 1:6 and 2 Peter 2:4 both describe angels who sinned, abandoned their assigned position, and are currently bound awaiting judgment. Scripture treats angelic rebellion as a real category, not only a human one.
Is the Sethite view wrong?
Not dishonest, just less consistent with how “sons of God” is used elsewhere. Job 1:6, 2:1, and 38:7 all use the identical Hebrew phrase for angelic beings, which is the strongest argument for reading Genesis 6 the same way, but the Sethite view remains a position held by serious, conservative Bible teachers.
Why does Jude quote a story connected to the Book of Enoch?
Jude draws on a tradition also preserved in the non-canonical Book of Enoch when describing angels who abandoned their proper dwelling. Quoting a source does not make that source Scripture, but it shows the fallen-angels reading of Genesis 6 was the common understanding in the first century, not a modern invention.
What happened to the Nephilim?
Genesis 6-7 places their destruction in the flood as part of God’s judgment on the earth’s corruption. Numbers 13:33 suggests either a recurrence of the same transgression or a later people group compared to them by reputation, and Scripture does not fully resolve which.
