Just as the practice of righteousness is an infallible marker of the true disciple, so the practice of sin marks out the devil’s followers. Satan is the prototype sinner, the first to launch out on this terrible path to destruction.
Satan will be forced to admit that he has infinitely misjudged God. He underestimated the forethought of God who anticipated even this act of evil and provided for it. Such is the reward of pride.
Satan’s lie that his service is preferable to the service of God is destroyed in the righteous when they reject their former master as a tyrant, and his service as unprofitable. They show that they would rather lose their lives than return to him again. Thus the devil’s servants disown him in full recognition of what he is.