In our current culture, many of us overlook spiritual warfare. Whether we admit it or not, we are engaged in warfare on three fronts: against the world, the flesh, and the devil.
If our value was based on size, we would be of hardly any worth at all compared to the sun, moon, and stars. But God has made us in His image and chosen to rescue us from our sin and restore our relationship with Him. This is what gives us worth.