Here is a site that discusses how the bible "seems to suggest the earth is flat", and why it actually does not suggest it to be flat.
https://answersingenesis.org/astronomy/earth/does-bible-teach-earth-flat/
Your four corners:
North, south, east, west
On your provided site the word "suggest," or its derivatives appears five times.
First, "Nearly everyone understands that a sphere does not have an edge. Indeed, we can travel indefinitely around a sphere and never reach a boundary or edge. On the other hand, if the earth is flat, it must have an edge somewhere, unless the earth is an infinite plane. However, few people today suggest the latter, and no one in the ancient world did. Bible skeptics are fond of pointing out that the phrase “four corners of the earth” appears three times in the Bible. Surely, the skeptics claim, this must refer to a flat, square earth—thus proving that the Bible teaches a flat earth."
Second, "The many instances of anthropomorphisms in the Bible, suggesting such things as God having hands (Psalm 8:3; Isaiah 66:2) or eyes (Proverbs 15:2) clearly are not literal. There also is an inconsistency in the flat-earth argument here. Flat-earthers believe that the firmament is a transparent dome over the earth, and hence is curved. On the other hand, no body of water is curved, but rather all seas have flat surfaces. But John described a sea of glass, which, by every other use, must be flat, so why is this one curved?"
Third, "Flat-earthers who pursue this distinction suggest that the phrase “in the firmament of heaven” of Genesis 1:17 (and possibly Genesis 1:14–15 as well) ought to be understood as “inside the firmament of heaven.”
Fourth, "Presumably, this was while still in the wilderness. Next, the devil took Jesus to the pinnacle of the Temple in Jerusalem and suggested that Jesus cast himself down (Matthew 4:5). Note that there was considerable distance between the wilderness and the Temple (at least 50 miles)."
Fifth, " For instance, the phrase “ends of the earth” appears 28 times in the King James Version, and, if taken
literally, suggest that the earth has an edge, which would rule out a spherical earth."
In the only instance your article figuratively "leaves the Bible to its own devices," so to speak, your article clearly states the Bible does indeed suggest the earth is flat, as a sphere does not possess four corners and does not have an end.