'On Earth' in the Bible

But, so you will know that the Son of man has authority on earth to forgive sins (He then said to the paralyzed man),

even though it is the least [significant] of all seeds on earth, becomes larger than all other plants. It develops huge branches so that the birds of the sky can roost in their shade."

and the stars will be falling from the sky and the forces of the heavens will be shaken. [Note: From the description of these same events in Luke 21:25-26, it is possible that this is figurative language for great calamities happening on earth].