I think your use of the plural (in "references") is incorrect. Isaiah 40:22 is the only passage I know of where the earth is described as a circle (not a "sphere"). Everywhere else, there are references to the earth's four corners, the ends of the earth, the pillars supporting the earth, and several statements that the earth is unmoveable. The New Testament states (twice) that from a high mountain one can see all the nations of the earth at one time.
As for the circle reference in Isaiah (which I believe is a unique anomaly in scripture), it was not impossible for ancients to observe that the earth's shadow during a lunar eclipse was in the shape of a circle. Thus it was quite possible for ancients to think of the earth as disk-shaped. Only a sea-faring people (like the Greeks) could also observe vanishing ship masts on the horizon and conclude that the earth was a sphere.
The word circle in Hebrew, khug, is best translated in terms of sphericity or roundness.
But if you are implying that the authors of the Bible made stuff up as they went along based upon new scientific discoveries – explain the Star of Bethlehem…
It appears a group of ancient scientists made an important discovery.
Yee-Haa! PatrickHenry the Biblical scholar. What a twist to keep your lies. A four cornered disk now. Your reading of the Holy Scriptures is unique to say the least.