Thomas Brooks emphasizes the various names of Satan found in Scripture, illustrating his nature and disposition. Each name, such as Behemoth, Adversary, and Abaddon, reflects the devil's characteristics, including his brutishness, malice, and destructive tendencies. Brooks warns that these names reveal the true essence of Satan as the ultimate adversary, tempter, and destroyer, highlighting the seriousness of his influence in the world. The sermon serves as a reminder of the spiritual battle believers face against such a formidable foe. Ultimately, understanding Satan's nature through his names equips Christians to resist his temptations and deceptions.