A common mistake. The concept of Earth as a planet is a contemporary idea. References to earth in the Bible are invariably references to the land/ground itself.
TD: a good point. bible writers, until ~ 100 years after Christ did not realize that the ground is not flat, but curves into a ball over the horizon. The geeky Greeks actually measured the curvature, and established the size of the earth with 10% accuracy. ~ 200 Before CE. It became a planet with Kepler ~400 years ago. so :
Does a settlement of Mars contradict bible prophecies?? : since those predictions require a flat Earth,:------- only if Mars is below the horizon ha ha.