Some Christian friends seem obsessed over the subject of giants and Nephilim. I believe like you that they were the result of fallen angels mating with human women. However, since God’s Word doesn’t dwell on the fact and makes very limited mention of them, why all the fuss? They existed and God destroyed them. My friends say in the last days there will again be “hybrid” humans, meaning half-demon and half-human from the interaction of fallen angels again. I’m just afraid that too much preoccupation with Nephilim, aliens, etc. will lead my friends into an obsession of studying dark things instead of what God’s real message is, the redemption of mankind. Maybe I’m the one who’s wrong and would welcome your thoughts.
The idea of latter day nephilim is a popular one upon which several ministries have taken substantial positions. It stems from two places in the bible. The first is the King James translation of Daniel 2:43, which says,
“And whereas thou sawest iron mixed with miry clay, they shall mingle themselves with the seed of men: but they shall not cleave one to another, even as iron is not mixed with clay.”
Some interpret this verse to mean the “they” who mix themselves with the seed of men refers to fallen angels, or what’s known today as extra-terrestrials, who will again produce a hybrid race in the end times.
The second is a misinterpretation of Matt. 24:37, which reads, “As it was in the days of Noah so it will be at the coming of the Son of Man”. Here latter day nephilim advocates assume that since there were nephilim in the days of Noah, Jesus was saying there will also be nephilim at the time of the 2nd Coming. But the context of the passage tells us He was really saying that just as most people were not aware that God was going to destroy the world at the time of the flood, so will most of the people on Earth be unaware that God is bringing about the end of the world as they know it at the time of the 2nd Coming.
In summary this whole idea is based on highly speculative interpretations of two verses. Now, that doesn’t mean it can’t be true, but to me it means we should proceed very cautiously in this area and look for more substantial Biblical evidence, instead of wandering around in non-biblical sources as some are prone to do.