Many electronic fire alarms have an internal switch triggered by a beam of light. As long as light is received unbroken by the photo-sensitive receiver, the detector is quiet. But if smoke or moisture or an insect obstructs the beam for even a split second, the alarm sounds.
Our conscience resembles such an alarm. When sin obstructs our connection with the light of God’s Spirit, the conscience signals us that there’s life-threatening danger.
—A.D. Sterner Akron, Colorado