If the Bible were honest, it would mention that the Greeks already figured out the earth is a sphere (yes, a sphere is not the same as a circle) well before Job was written and had calculated its circumference within a reasonable degree of what scientists have proven it to be.
OK. My turn.
The popular view is that Job was written between the 6th and 4th centuries BCE.
Although the Greeks had ideas about the Earth being spherical by the 4th century BCE, the approximate circumference of the Earth was calculated by Eratosthenes who lived in the 3rd century BCE - later than the book of Job's composition.