Technology Reveals Physical "Invisibles". Modern technology enables us to see whole realms formerly invisible to the unaided eye. Thru technology, we understand invisible mold, bacteria, viruses, and other microorganisms are everywhere and silently working "behind the scenes", sometimes for good (e.g., penicillin, probiotics, nutrient recycling) and sometimes for evil (e.g., infectious diseases). The same could be said for their larger cousins in the insect world (e.g., honey-producing bees and disease-spreading mosquitoes). Even visible things can often go unnoticed while they quietly do good (e.g., utility companies providing natural gas, water, and electricity) or evil (e.g., junk food, lead paint, asbestos insulation).
The Bible Reveals Spiritual "Invisibles". Just like technology in the physical world, God's Word reveals to us difficult-to-see activities from a spiritual perspective – people who are quietly working "behind the scenes", sometimes for good and sometimes for evil. In both cases we need to be aware of their actions and take appropriate action.