Answer: We know that the events surrounding the end times, as described in the Bible, will include a powerful deception (Matthew 24:24). Recently, interest has been rising in the theory that this deception will include alien beings from another planet. Odd as it may seem, this theory is entirely plausible from a Christian perspective. Although the Bible gives us no word about whether or not aliens existthere is no inclusion of them in the creation account in Genesis, and no mention of them elsewherethe Bible does tell us about visitors from another worldthe spiritual world.
Since the beginning, instances of demons (fallen angels) visiting the earth have been witnessed and recorded. We know from Eves encounter with Satan that demons are interested in monitoring (and altering) the progress of humanity. They want to be involved, with the goal of drawing humanity away from the worship of God and turning mankinds attention instead to them. Another notable instance of their interaction with us is found in Genesis 6:4 with the arrival of the "sons of God." The Genesis account states that these powerful beings had sexual intercourse with women and produced a super race of beings known as the Nephilim. This sounds like the stuff of science fiction, yet it is right there in the Bible.
There are striking similarities between this account and the accounts of other ancient cultures. The writings of the ancient Sumerians, for example (who were the first to produce a written language) mention the presence of the Anunnaki who were deities that came from heaven to dwell on earth with men. It is also interesting to note that the Sumerians gods often came to them in the form of snakes.
These accounts, seen alongside the amazing things created by ancient man, make it possible to theorize that demons, in the form of beings from another world, came to earth, bringing spectacular wisdom and knowledge to men, and intermarrying with their daughters in an attempt to draw men away from God. We already see from Eves experience with the serpent that demons will use the temptation of superior wisdom to ensnare man and that man is very susceptible to it.
Could the end times include a similar alien deception? The Bible doesnt directly address the issue, but it is certainly plausible, for a variety of reasons. First, the Bible tells us that the world will unite under the power of the Antichrist. In order to achieve an agreement between all the worlds religions, it would make sense for the uniter to come from an entirely new sourcean extraterrestrial source. It is hard to imagine one religion becoming head of all the others, unless new, unearthly knowledge were the source of the appeal and power of the new religion. This would be in keeping with past deceptions and would be a very effective way to deceive a large number of people.
Second, this deception could provide an answer to the problem of earths origins. The scientific theory that the evolution of life on earth was spontaneously generated still has no answer for lifes beginnings. There is evidence for a big bang, but that still doesnt explain what caused the big bang to occur. If alien beings arrived and gave us an extraterrestrial explanation for life on earth, the origins of the world religions, and even the origins of our planet, it would be very persuasive.
That said, we should not fear. The Lord has said that He will not leave us or forsake us, and that He will protect us (1 Kings 8:57; Matthew 10:31; Isaiah 41:10). Demons / angels are not omnipotent, nor are they omnipresent. Jesus said that in the end times His appearing would be like the lightningeasily visible to all. He said to be wary of any being that says I am the Christ or any group that said Hes over there or Hes in here (Matthew 24:23-24). He said that vultures gather around a dead body, meaning that if you see a group of people gathering around someone claiming to be Christ, that person is death and a false prophet.
We should be wary of any person or being that produces signs and wonders without biblical fidelity or the presence of obedience to the Lord Jesus, anyone who provides a way to unite the world religions or governments (Revelation 13:5-8), any being that promotes unnatural sexual relationships (Genesis 6:4; Jude 1:6-7), and of course, any person that denies that Jesus is God (2 John 1:7). Furthermore, anyone who presents a substitute Jesus, who represents Him as a god but not the God or who claims He was merely a good teacher, simply a human, or even a super-human or an alien creature, is a deceiver.
Lastly, if demons manifesting as aliens are part of the end times, we should remember that they, too, are created beings, subject to a sovereign God, and ultimately answerable to Him. Whether in alien form or not, the descriptions of demons in Revelation are frightening (Revelation 9:1-12), but we should not fear those who can kill the body, but only Him who can kill the body and the soul in hell (Matthew 10:28). No matter what happens to us on the earth, we should trust that the Lord is the Savior, Redeemer, and Protector of the souls of those who put their trust in Him (Psalm 9:10; 22:5).
Recommended Resources: Understanding End Times Prophecy by Paul Benware and Logos Bible Software.
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