Be sober, be vigilant; because your adversary the devil walks about like a roaring lion, seeking whom he may devour.
1 Peter 5:8
In the 1969 comedic Western film, Butch Cassidy and the Sundance Kid, the two main characters have committed a robbery and are being pursued by a posse of lawmen. Every time the main characters look over their shoulder, the posse is still there. The robbers repeatedly ask, “Who are those guys?”
Relentless pursuit is part of the Christian life. That is, we are constantly being stalked by “[our] adversary the devil.” It was the same with David in the Old Testament; he was pursued by King Saul who sought to put David to death. Unlike the film characters, we are not being pursued for a specific sin or action. In fact, it is the opposite: We are on God’s side and are relentlessly pursued and attacked by our spiritual enemy, Satan. For that reason, we must “be sober, be vigilant”—we must never let our guard down. We must clothe ourselves daily in the believer’s spiritual armor, our only defense against the “fiery darts of the wicked one” (Ephesians 6:10-18).
Be vigilant, but not fearful. In Christ, we have all the defense we need against our spiritual enemy. We are victorious in Christ.
Satan does far more harm as an angel of light than as a roaring lion.