Long before there were spy planes and spy satellites, armies depended on people posted on various high spots to alert them of incoming forces. The person was often mounted in a watchtower to survey the landscape.
The ancient prophet, Isaiah, aware of this military strategy, is also aware that there is a need for a spiritual counterpart:
“Day after day, my lord, I stand on the watchtower; every night I stay at my post. (Isaiah 21:8)
If it is true that we are spiritual beings having a human experience, we need to post our own watch for those “enemies” that might destroy our lives. The story of the frog and the water is instructive. If you put a frog in a pan of hot water, he will immediately jump out. If you put the frog in a pan of cold water, and heat the water slowly, the frog will remain in the pan with no regard for his demise. Most of the danger that comes to us that undermines our spiritual faith does not come with flashing lights and neon signs. The danger comes in the form of the good and innocent. Slowly we have given in and settled for the mediocre when God wants the best for us. Be in your lookout for the outlook! – Ron Friesen