The sermon centers on the declaration in Revelation 19:6 that the Lord God omnipotent reigns, emphasizing the present reality of God's sovereign control over all creation. It contrasts human perceptions of chaos and evil with the theological truth that God actively rules over every person, power, and circumstance. The preacher draws upon historical examples like Nebuchadnezzar to illustrate that denying God's reign is equivalent to denying His deity. This doctrine serves as a source of profound encouragement for believers facing persecution, suffering, and doubt. Ultimately, the message urges the audience to find joy and confidence in prayer by trusting that the Almighty is seated on the throne.