'On Earth' in the Bible

Do not be rash with your mouth, and do not let your heart be quick to utter a word before God. For God is in heaven, and you [are] on earth; therefore, let your words be few.

There [is] a vanity that happens on earth: sometimes the righteous suffer what the wicked deserve, and sometimes the wicked receive what the righteous deserve. I said, "This also [is] vanity!"

I applied my mind to know wisdom and to understand the business that is done on earth--how neither day nor night one's eyes see sleep.