You do realize that thousands of airplanes a day travel around all areas of the globe, right? You do realize that if you are in one of these thousands of planes that fly every day cruising at 35,000 feet that you can clearly see the curvature of the earth, right? Have you ever been on a plane?
Heck, let’s have some fun. Go to a pier and watch ships disappear in the horizon. What do you see? You see the bottom of the ship disappear first and then progressively disappear from bottom to top until the top of the ship disappears. Do you know why that is? Because of the curvature of a spherical earth.
The fact that the earth is a sphere is not up for debate since it has been fully proven. Any other argument going against a fully proven fact is just absurd.
God created a spherical earth that spins on its axis every 24 hours and goes around the sun every 365 days. God created every other planet in our solar system and beyond to also be a sphere. The sun and the moon are spheres. Therefore the earth is a sphere.
In regards to airplane windows, they are all convex, much like the lens on a go pro camera. In other words, you are looking out a curved window, not at a curved earth.
Ships don't disappear over the curvature of the earth, they advance beyond your visual perspective. Have you ever been on a long narrow highway lined with telephone poles on both sides? Look ahead or behind, the poles will grow closer together and closer to the ground from your perspective. Drive down the road a mile and those same poles will be at the same height and distance from one another as you originally perceived them. Aim a camera with a telescopic lens at the ship you watched disappear beyond the horizon, magnify the zoom and it will return to view.
You plainly stated "the fact that the earth is a sphere is not up for debate". Then why may I ask are you debating it here? If you are convinced that your view of the cosmos is the correct one, and all other viewpoints are " absurd", then what is the point of further discussion?
You mentioned that it was God who created a spherical earth. It was also God who created the first humans, Adam and Eve. He created them in His own image and placed them in the garden called Paradise. They were perfect and innocent and had the presence of God Himself with them regularly. And yet, these magnificent creatures who were blessed beyond measure, and created in the very image of Almighty God, were somehow deceived by nothing more than a few simple statements and suggestions.
We live in a fallen world, with fallen natures, not a paradise but a cesspool run by none other than Satan himself. Our enemies, the world and the devil, exist in complete opposition to everything that is holy and good and true. Our enemy the flesh is so easily tempted and corrupted that we must continually guard our hearts and minds against not only the world and the devil, but our own vain thoughts and imaginations. And yet, in light of these obvious spiritual realities, your average believer cannot even allow for the possibility that this evil and fallen world in which we live, just may be misrepresenting Gods creation, how such misrepresentations would obviously benefit them, or that ever falling victim to such a misrepresentation could ever be possible.
I have already asked, why are you here if there is nothing to debate?
Have you ever wondered why we are here? Do you think those of us who disagree with you come here because we enjoy the insults, being called idiots and wingnuts and repeatedly being accused of having no discernment or wisdom and many times even being told that we can't even possibly be true Christian believers etc etc? Are we masochists? Trolls? Enemies sent by the devil himself to stir up division? No to all of these.
I can't speak for anyone else, though I know enough people who share my views to confidently say, we are here because at some point in our lives we realized that this world is an empire of lies, ruled by none other than the father of lies, and that a great deal of what we have been told our entire lives served no other purpose than to distract and deceive us into accepting and believing even more lies which would eventually separate us from any knowledge of Almighty God, His creation, His divine purposes, and ultimately His very existence.
That what you call science, and established facts have already had this effect is beyond dispute. The theory of evolution being a prime example. How many people will never believe in God based upon that one scientific theory alone, how many others raised in the faith have abandoned that faith because of the things they were taught as facts during the process of higher education? God only knows.
We are here because at some point we realized that what we were told did not align with what we have observed. Do we claim to have all the answers, of course not. What we do have are a wealth insufficiently answered questions. And the God given ability to question those things which we can observably see as unsupported by the commonly accepted answers provided by the so called scientific community and generally accepted by the indoctrinated public at large.
God bless you.