“But those who wait on the LORD shall renew their strength; they shall mount up with wings like eagles, they shall run and not be weary, they shall walk and not faint” (Isaiah 40:31).
Most of us are very familiar with the force of gravity or gravitation in our everyday life. Gravity is what keeps us stable as we walk, run, or make any other bodily motions. Gravity orients us as to where “up” is and where “down” is. Without gravity acting upon us, we would be like the astronauts in their spaceship that orbits around the earth’s stratosphere, where there is “zero gravity.” You’ve probably seen videos or movies of astronauts floating or walking so lightly and clumsily inside their spaceship.
If we’re sensible, as I assume most people are, we would respect the law of gravity as a real force. Thus we don’t horse around while we are standing on a window ledge on the 20th floor of a building — unless we are thinking of suicide, as some have thought and done.