Why Flat Earth is DANGEROUS to Christians

Written by a Christian, for any Christian whose mission is to preach Flat Earth as fact because of what the Bible says. Now obviously, I have no issue with someone’s personal spiritual beliefs; it’s more someone’s understanding of scientific explanations and proofs through observations, and just because you don’t understand it or because you may believe it conflicts with Biblical passages doesn’t mean the scientific evidence isn’t true!

Believing the Earth is flat and surrounded by a solid dome goes against everything that science and Astronomy has stood for and progressed over two millennia.

While yes, there are plenty of non-religious Flat Earthers, It just seems that the most vocal Flat Earthers are also religious, and claim to use “Flat Earth Truths” as witnessing tools. Therefore, it’s very easy for many people to dismiss Flat Earth as a religious nut-job conspiracy. 

As a Christian, I believe “The Heavens declare the glory of God, and the skies proclaim the work of his hands. Day after day they pour forth speech; night after night they display knowledge” (Psalm 19:1-2).

As an astronomer, I know that what we can observe and learn from the sky helps humanity understand what we’re made of and where we come from. Studying the light of objects, going over their spectrum helps us understand their properties, their mass, luminosity, distance, plus grasping the math and physics behind it adds precision, and aids our understanding in how things actually work!

I wouldn’t bump elbows with some amazing intellectual colleagues if I didn’t have that grasp of what science actually teaches, and just because I don’t take certain passages literally doesn’t mean I don’t retain my beliefs.


It’s understandable for the authors who wrote the Tanakh to describe the Earth as stationary with a sky “firmament” resembling a “stretched sheet of metal” before Classical Antiquity.

The word “firmament,” as said in the King James Version of Genesis 1:6 (“…Let there be a firmament…”)  is a word that flat earth literal biblical interpreters often use as part of their ammo to suit their claims.  However, they often take it out of context and don’t take into account what the word actually means. The original Hebrew word, “rāqîa,” from the passage in Genesis 1:6 (“…let there be rāqîa…”) comes from the root word raqqə which means “to beat, or spread out thinly.” Another word used instead of firmament is “expanse.” So you have one translated word that means “to spread” and another translation calling it an “expanse,” plus the phrase “stretching the heavens” being mentioned eight times… and you actually have more of a compelling case that the Bible gives tiny hints of an expanding universe rather than an enclosed creation inside a solid dome.

While the Hebrews before the time of Ancient Greece probably did envision the earth as a flat plane under a solid dome, it was before those in Ancient Times figured out the Earth was in fact a sphere, and early Christians accepting the Ptolemaic geocentric model of the universe still saw the earth as a solid rocky sphere inside a celestial sphere. Even when Copernicus presented the heliocentric solar system to account for what we observed in the sky, it was still believed that there was a solid sphere surrounding it.

It was telescope observations of the stars that eventually blew the concepts of a solid orb surrounding Earth out of the water.

Everything we know about astronomy and the universe is the accumulation of a couple thousand years of knowledge at the most. That’s a short amount of time given how long humans have lived on this planet! Even I’ll admit, it’s hard to let all the mind blowing facts sink in, but that’s what adds to the charm of astronomy!

I’ve met Flat Earthers in person when they visit the Observatory, and I’ll get social media messages from them acting like they know more about astronomy than I do. All that happens is a game of pigeon chess – the pigeon knocks the pieces over, defecates on the board, and then struts around like they’ve won.

Simply repeatedly quoting verses in a science discussion doesn’t mean you’ve won the debate, especially when you fail to answer the questions or get hostile when told you’re wrong.


For a Flat Earther who tells me I don’t read nor understand the Bible, or that I’m a shill/ part of a conspiracy movement out to deceive from the truth; I dare say that approaching someone like me with that mindset is dangerous.

Even figures such as Kent Hovind, Ray Comfort, and Ken Ham, three young earth anti-evolution creationists whom the science community often rejects, still side with “Globe Earthers” on this topic. You know Flat Earthers are in a different league when THEY say Flat Earthers are wrong.

From listening to countless debates, and having done a couple in person, I have heard all of “Flat Earth’s Greatest Hits,” featuring such gems as:

“What you see in the sky is just pretty lights in the firmament…” 

Oh dear… people really think that?! That is a very checkable statement, and chances are people saying that have NEVER looked through a telescope. Well, I have been observing stars, planets, asteroids, comets, nebulae, and even other galaxies through a telescope all my life. 

I’ve observed the Rings of Saturn. I’ve seen ice caps on Mars. The two pictures above were not taken with anything special or processed through stacking, they were taken with an iPhone 6 adapted onto my telescope – IT’S THAT EASY! 

Jupiter’s own moons can be observed to orbit the planet through a telescope. I myself have visually watched one of its moons move in front of the planet, and project a shadow on the disc of Jupiter… which means that Jupiter is not generating light – you cannot cast dark shadows on the surfaces of sources generating light! Reflecting light, yes, but not generating!

You know what I see when I point my telescope towards a single star? More stars. You know what happens if I point a bigger telescope towards that same group? I see MORE STARS that weren’t there before! You know what happens when I take a long exposure photograph directly through a telescope? I SEE MORE STARS!! Don’t forget about the images I’ve taken myself of nebulae and galaxies…

The larger the telescope and more sensitive the cameras, the more resolution and depth you can see into the universe!

So no… what you see in the sky is NOT just pretty lights in the firmament. If there is in fact a solid dome or orb in the sky surrounding us, how big of a telescope do I need before I can start seeing it? How much long exposure do I need to accumulate into my camera sensor through my telescope before I start seeing it behind all the background stars and distant galaxies that I’ve taken pictures of?!

IF flat earthers are so sure this firmament is there, despite people figuring out hundreds of years ago it isn’t, what’s stopping them from buying a telescope, taking long exposure pictures, and testing it out yourself?!

I have already gone into great detail about the stars being the biggest case AGAINST Flat Earth in another article, so by all means go check that one out if you want to learn more on the earth’s precession and Polaris, the celestial sphere and southern stars, and equatorial telescope mounts.

You can also check out these articles

If We’re Moving, then Why are the Stars the Same?

Why Do the Stars Change with Each Season?


So Why is Flat Earth Dangerous to Christianity?

Persisting in the Flat Earth belief goes against everything that science and astronomy has progressed and proven with repeatable evidence and predictions for the past 2,000 years. What we observe with sunrises/sunsets, the moon phases, time zones, eclipses, constellations, circumpolar stars, and how equatorial telescopes work with celestial coordinates just isn’t possible over a flat earth.

If Flat Earthers are so adept in the scientific method, then they should be able to present and prove their claims with evidence and experiments that are repeatable, peer reviewed, and be able to make predictions. It’s not my problem they get the math and physics wrong, and get hostile when told so. Just simply saying, “well NASA this, secret society that, NASA lies, black swan photo, blah blah blah” in response doesn’t automatically mean they won the debate.

Christian Flat Earthers who thump the Bible and constantly claim “astronomers are fake, astronomy isn’t a real science,  astrophotography is fake,” etc., are just making people think that Christians are stupid and/or have mental problems. But when you think about it, wouldn’t the idea of Christians looking stupid something be conjured up by the same fallen angel whose biggest deceit is convincing the world he doesn’t exist?  Is it possible that this movement was started by con men trying to see how many Christians would fall for it?

The Bible has its share of poetic and figurative passages that Flat Earthers cite to suit their claims. Most often cited are Job 38:5, 12-14, Isaiah 11:12, 40:22, and Revelation 7:1, 20:7.  The verses which talk about “four corners/ends of the earth, circle of the earth, straight lines” do not blatantly say the earth is flat, but they are clearly misinterpreted and taken out of context. 

There are no verses outright saying the Earth is flat, nor that you need to believe it is flat. But falling for false truths, false messiahs, and taking the verses out of context is definitely warned about a lot, and it’s a big trap that everyone, including Christians, should be cautious of. 

Christian Flat Earthers who continue to stay on this path and lead more people into this mindset are not doing Christianity any favors. They’re not making Christianity better, they’re just making gullible people more illiterate! Going as far as teaching children and indoctrinating them into believing outlandish ideas like “Globe Earth equals 666/Satan,” will lead to more people who are intellectually crippled, and unable to contribute to centuries of progress towards STEM fields.

It can lead to a dangerous road where people dive further into conspiracies that thrive because people will just believe anything they’re told without proper research. It’s no wonder we have our share of Anti-Vaxxers and Climate Change Deniers. One well known Flat Earth YouTuber got arrested for harassing kids at a school, and what’s even more sick is that he saw nothing wrong with his actions or consequences. Lets not forget about the crazy professed Flat Earther who died after his homemade rocket crashed. Perhaps we’ll one day witness a religious cult that commits suicide over the appearance of a great comet… oh wait, that actually happened in 1997.

At the end of the day, I know that no matter what I say or what evidence I produce, I won’t convince the people who are deep into this movement. But the people who have not yet fallen into this trap are still reachable, and I would be more than happy to discuss.

If you’re a Christian who is on the fence about this, I must urge you to do better research than simply listening to some stranger on YouTube with a smartphone and internet connection. They may sound like they know what they’re talking about, but for every one video claiming indisputable proof of Flat Earth, you’ll find perhaps ten videos debunking that “proof.”

Flat Earthers are becoming way too predictable, simply reciting the same things over and over, and are running out of new things to say.

Astronomy people like me have nothing to hide. We are not hiding any secret information and we would be happy to personally demonstrate how our telescopes work, and what we can observe in the sky that proves the Earth is a spinning globe. But you have to stop hiding behind your keyboard and show an open mind to learning something!

If you made it this far, thank you for reading this article. If you have anything you’d like to say, whether you agree or disagree, I’d love to hear your feedback.

If you are going to leave a comment, please keep it relevant to the topic.

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8 thoughts on “Why Flat Earth is DANGEROUS to Christians

  1. The heavens declare the glory of God: and the FIRMAMENT sheweth his handiwork . Psalm 19 v 1. In the first chapter in the first book Genesis the word FIRMAMENT is used 9 times! Now we know the Hebrew for this word. If our God saw fit to say that word 9 times alone in the first chapter of the first book ,we should be persuaded to search and understand the meaning of this word and the significance as it pertains to the account of creation! The earth is still. His word is truth!

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    1. Yes, I am aware what the word firmament means and it’s use in the Hebrew Tanakh/Old Testament. It’s understandable that the Biblical Hebrews, and early Christians alike thought the sky was as such. Even early accepted scientific astronomy models from Ptolemy and Copernicus, well into the 16th century, presented a spherical earth surrounded by a solid celestial sphere that held the stars… and yes, it appears that way when you just observe the sky with your naked eyes.

      But telescopes pretty much show a different tale.

      I am not saying there isn’t a spiritual heaven, a realm outside the physical universe beyond time and space, nor an all powerful creator, as I do believe in as such.

      But when it comes to a physical firmament above earth, How big of a telescope do I need to see it? How much long exposure do I need to accumulate into my telescope and camera sensors before I start seeing this “thinly veiled sheet of metal” behind all the background stars and galaxies I’ve taken pictures of?

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  2. And God made 2 great lights. And God SET them IN the firmament of heaven. Genesis 1 verse 16-17. God tells us the moon has her own light.Science says the moon gets light from the sun, I believe God. Genesis chapter 1 tells us that the birds fly in the open Firmament of heaven. The sun moon and stars are IN the firmament. The bible does not tell us of endless space. Above the firmament is heaven. That is what his word says. There is no such word as universe in the bible. God did not say there is endless space. Endless space beyond heaven? The bible does not tell us that. This earth is at the very heart of creation. We are the apple of his eye! All this is for man. Anything beyond heaven would be wasted space as heaven is the all in all! God tells us in his word that above the firmament is heaven. The first chapter of Genesis going over it line by line is the most awesome chapter as it is full of truth about Creation and our earth as told to us by our awesome God. God at his word. Man was given dominion over earth. We were not given dominion over anything above the firmament. No where in the bible does it tell us that. The Tower of Babel comes to mind. Sorry for the length of this note, my heart would not let me not answer. What an awesome creation!

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    1. The thing is, when you understand how vast and hostile the universe and all of creation actually is, you realize how much of a miracle it is that we exist in the form we do. We could be gone tomorrow if the creator says it so! That last sentence, “what an awesome creation…” I totally agree!

      Yes, the Sun, Moon, planets, and stars are IN the heavens. The KJV word “firmament” translated from the original Hebrew “rãqīa” means “to spread out thinly” and other versions translate the word rãqīa into “expanse.”

      Yes the Bible does hint at an expanding universe. Eight times a “stretching of the heavens” is mentioned, my personal favorite being Isaiah 45:12.

      Another one of my personal favorite phrases is from Job 38:31-33. Not only does it mention some famous sights in the sky (Orion’s belt, Pleiades, “Bear with its Cubs/ Arcturus and her sons” depending on the translation) but ends with “do you know the laws of the heavens? Can you set up God’s dominion over Earth?”

      So yes, even if we disagree on the existence of outer space and how things work according to science, we can both agree that we don’t have dominion over the heavens, and while we have our place on Earth, we’re not the ones in control.

      If the moon actually gives off its own light, then explain to me how the moon phases work and why the lit side always points towards the Sun? Or how the moon is full when it’s completely opposite the Sun in the sky? Explain to me how lunar eclipses happen, and how we can observe shadows on the lunar surface when they happen? I could go on and on, my friend. Yes the Bible tells us it “gives off its own light,” but science is merely about how and why it gives off light the way it does.

      And at the same time, of course I can acknowledge that without the moon, it wouldn’t stabilize our rotation and tilt, and thus we wouldn’t be able to exist! Again, we happen to live in a location where the conditions have to be just right as it is! Like I said before, it’s a miracle we exist at all!

      Astronomy just happens to be my way of glorifying, and showcasing the beauty of the heavens that I believe God created. The more I understand it, the more it leads me in that direction.

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  3. Reading only from chapter 1 of Genesis verse 14 and 15 God says in his word, the sun the moon and stars were put in the firmament of the heaven to give light upon the earth. Everything was for earth. Genesis chapter 1 tells us God created light on day one. He divided the light from the darkness, the evening and the morning were the first day. There was light and darkness morning and evening from day one. All this before the sun and the moon and the stars were placed IN the firmament on day 4.Amazing . Going by the word of God light and darkness, morning and evening were before the sun the moon and the stars. Genesis chapter 1 verse 6 and 7 tells God made the firmament and divided the waters above and the waters below that firmament. He called the firmament heaven.There is water above. His word.
    The words here written by you “When you understand how vast and hostile the universe and all of creation actually is, you realize how much of a miracle it is that we exist in the form we do.” I do not believe God made earth and the firmament vast and hostile. I do agree it is a miracle to just be alive and here. We have a home above and we will see God . God made the earth and all things in perfection. The sin of man and the effect of the flood changed the earth . Sin entered the day they ate of that tree of the knowledge of good and evil. I love looking up and am in awe of those lights in the firmament. Looking at them all with the naked eye is overwhelming. The bible tells us God called all the stars by name! But far brighter and much more glorious will be to see the one who loves us so face to face. The stars will pale in comparison to the glory of our creator!

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    1. “I don’t believe God made the firmament vast and hostile…” that’s fine, buddy, believe that all you want. I know what I can observe through my telescope, and I know what I’ve taken pictures of, and repeatedly demonstrated. Either way, my Christian faith and beliefs are the same, and are not in conflict with any scientific explanation behind how things work. Just because I don’t take certain Biblical passages literally doesn’t mean I don’t find truth in the ultimate message of Salvation. I will look forward to the day when the first heaven and first earth are gone and we are in His presence.

      But until then, this is a science and astronomy blog. If all you’re going to do is try and preach to me about passages I’ve read and analyzed many times, and not add anything to the science and astronomy discussion, then there is nothing more we need to say. Take care.

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  4. One thing that is clear is your faith in God and your awe in his creation. You give God the credit for all that has been made. That cannot be hidden. I meant no harm .we differ in details, we are of the same father. I chuckle at the fact you thought I am a male judging by your terminology ‘Bud’ . Alas I am just a 65 year old woman. Peace!

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    1. I know you meant no harm, haha. I’m also a Californian, so I call everyone “buddy” or “dude” even if you’re female 😉. You’re correct, we differ in the fine details, but are of the same body. Blessings!

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