If you want to argue that the Nephilim survived the flood, you have a problem. Not a small problem either. The problem is a biblical one. If we are sticking to Scripture, there is no solid biblical reason to believe that the Nephilim survived the flood. In fact, the argument that they did survive depends almost entirely on extra-biblical material or on a misuse of Numbers 13.
The main biblical passage people appeal to is Numbers 13:33: “And there we saw the Nephilim, the sons of Anak, who come from the Nephilim. And we seemed to ourselves like grasshoppers, and so we seemed to them.” At first glance, that sounds like a direct biblical statement that the Nephilim were still around after the flood. The spies say they saw the Nephilim in Canaan, and they even connect the sons of Anak to the Nephilim. However, the context matters. Numbers 13:32 tells us exactly what kind of report this was: “So they brought to the people of Israel a bad report of the land that they had spied out.” The statement about the Nephilim does not come from Moses as an inspired historical explanation of who the Anakim were. Instead, it comes from the fearful spies who were trying to convince Israel not to enter the land.
In other words, Numbers 13:33 is not a sober genealogical claim. It is part of the bad report. The spies are exaggerating. They are trying to make the inhabitants of the land sound unbeatable. They are trying to terrify Israel. We can see this precisely when we compare the two different reports given by the spies. The first report (to Moses) affirms that the land is indeed fantastic; however, the cities are large and the people are strong. The second report to the congregation as a whole is entirely negative. They said the land devours its inhabitants (I thought the land was great?!) and they even saw the Nephilim because, obviously, the sons of Anak are descendants of the Nephilim. And their strategy works, because Numbers 14 opens with the people weeping, grumbling, and wanting to return to Egypt. So Numbers 13 does not prove that the Nephilim survived the flood. It proves that Israel’s fearful spies used the language of the Nephilim to make the Anakim sound terrifying.
This becomes even clearer when we remember how Genesis presents the flood. The flood is not treated as a partial reset. It is presented as a total judgment on the corrupted world. Genesis 6:5 says, “Yahweh saw that the wickedness of man was great in the earth.” Genesis 6:11–12 adds that “the earth was corrupt in God’s sight” and “filled with violence,” and that “all flesh had corrupted their way on the earth.” Then God tells Noah, “I have determined to make an end of all flesh, for the earth is filled with violence through them” (Genesis 6:13). The flood narrative does not present the Nephilim as surviving. It presents Noah and those with him in the ark as the ones preserved through the judgment.
Genesis 7:21–23 is especially clear: “And all flesh died that moved on the earth,” and “He blotted out every living thing that was on the face of the ground.” Then the text concludes, “Only Noah was left, and those who were with him in the ark.” That is the biblical baseline. If the Nephilim existed before the flood, then they died in the flood. The Bible gives us no exception clause where the Nephilim escape, survive, reappear, or continue through some secret bloodline. To argue that Nephilim did escape the flood is to argue that God failed in his judgment of the Earth.
So where does the idea of surviving Nephilim come from? This is where people usually leave the Bible. They bring in material like 1 Enoch, the Book of Giants, or later Jewish traditions about giants, Watchers, and demonic corruption. But that is exactly the point. Once you need those sources to sustain the argument, you are no longer making a biblical argument. You are making an extra-biblical argument.
The problem gets worse because these texts come much later than the actual Enoch. They claim Enochic authority, but there is no good reason to believe that Enoch actually wrote them. The biblical Enoch lived before the flood, and Genesis 5:24 says, “Enoch walked with God, and he was not, for God took him.” That probably explains why later writers would attach Enoch’s name to these kinds of writings. Enoch is mysterious. He predates the flood. He did not die in the ordinary way. So if someone wanted to write an ancient-sounding apocalypse about angels, giants, and primeval secrets, Enoch is the perfect name to use.
But that does not make the writing actually Enoch’s. It makes it pseudepigraphal. Someone is writing in Enoch’s name. To put it bluntly, it is basically religious fanfiction with a plausible ancient narrator. That may sound harsh, but it gets at the issue. The text claims to come from someone who could plausibly have known pre-flood realities, but the claim itself is not enough. Unless one wants to argue that these books are part of the biblical canon (there are very good reasons why they aren’t), then it is best to view them as some form of ancient biblical fanfiction. They have connections to the Bible but fill in gaps that the Bible explicitly leaves empty.
This is why Numbers 13 is not enough. The strongest biblical case for post-flood Nephilim depends on treating Numbers 13:33 as a reliable factual statement while ignoring that the Bible itself frames the statement as part of a bad report. That is not careful exegesis. The ten spies were not trying to give Israel a neutral ethnographic study of Canaanite tribes. They were trying to convince Israel that entering the land was impossible. Their point was not, “Here is a precise genealogy of the Anakim.” Their point was, “We cannot win.”
That is why Caleb immediately respond with faith after the initial report: “Let us go up at once and occupy it, for we are well able to overcome it” (Numbers 13:30). The other spies then push back by saying, “We are not able to go up against the people, for they are stronger than we are” (Numbers 13:31). Then comes the bad report. Then comes the claim about the Nephilim. Then comes Israel’s rebellion. The flow of the text is obvious. The Nephilim reference functions rhetorically. It is fear and intimidation language; admitting unbelief in God who promised to be with them. After listening to the 10 spies and despising the word of Joshua and Caleb (even attempting to stone them in Numbers 14:10), the Israelites were afraid and rebelled against God.
If we stick only to Scripture, then the Nephilim did not survive the flood. Genesis gives us the flood as a comprehensive judgment. Noah’s family and the animals in the ark survive. Everyone else dies. Numbers 13 does not overturn that in any way. It records the words of terrified spies giving a bad report. That report includes a claim about the Nephilim, but the text itself has already warned us how to read their report.
So if someone wants to argue that the Nephilim survived, they can make that argument from 1 Enoch, the Book of Giants, or later Jewish traditions. But they should be honest about what they are doing. They are not deriving that belief from Scripture. They are importing it from outside Scripture and then reading it back into the Bible. Once we refuse to do that, the conclusion is straightforward: the Nephilim did not survive the flood.
