Here's a little nuance for you: Human head don't have corners, but a beard can. We can illustrate this by putting a cheese slice on a kid's ball. The cheese has corners, the ball isn't flat.
The Nuance of the Earth’s Corners
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 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.
November 13th
Some people believe that the Earth is flat. Some people also believe that the Bible describes a flat Earth. Neither of these are true. The Bible describes a spherical Earth which formed around a gravitational singularity.