Depending on what English translation you're reading you may see this rendered as "the coasts of the earth," "the sides of the earth" or "the ends of the earth."
The Ends of the Earth
If the Earth has ends does that mean it has to be flat? No, because "end" is a translation of a word which means "extremity or furthest reaches of" in which case we're talking about the beach.
The Circle of the Earth
If we use deduction then we can look at the simple fact that Earth is a globe, and conclude that the meaning of the word circle in Isaiah 40:22 is sphere. In this case the Hebrew word translated as circle also means sphere.
The Whole Earth
When we consider the similarities between the third day and the Millennial Kingdom we should realize that, if flat Earth is Biblical, then maps of the supposed flat Earth should have Jerusalem at the center. They don't.
The Field Value for Acceleration due to Gravity, g
In popular science (SciPop) the mass of the Earth is calculated by knowing: its radius, the gravitational constant big G, little g, the field value for acceleration due to gravity.
Four Corners of the Earth in Context
Every time the phrase the four corners of the earth occurs in the Bible it's in the context of the Millennial Kingdom, which is after the plagues of the tribulation.
The Problem With Geocentrism
There's no question that the cosmological system described in the Bible is Geocentric. The problem with the word Geocentric, and with Geocentrism in general, is that it's irrevocably yoked to the flat Earth insanity.
Hypothesis 8
The pillars of the earth occur in a few places in scripture. We can incorporate them into the Biblical narrative we're constructing to explain the development of the Spherical Hollow Earth Model (SHEM).
Low-lying Continents with Some Epicontinental Flooding
"Low lying continents with some epicontinental flooding". That's how you describe a world-wide flood without saying the words "world-wide flood."
The Four Corners of the Earth
The phrase "the four corners of the earth" occurs a few times in scripture but every time it's in the context of the millennial kingdom, it's never used in any other context.