What does it mean that God is a triune Spirit Godhead?
Scripture presents God as a triune Spirit Godhead: while Christ rules and reigns, especially during the thousand-year Kingdom, the Father and the Spirit are not canceled out but remain in the background. Dealing with God means dealing with all three—Father, Son, and Spirit—unified as the Godhead.
Les explains that although Christ rules and reigns, especially over the thousand-year Kingdom reign, the rest of the Godhead is still there in the background and cannot be forgotten. He cautions against canceling out God the Father and God the Spirit, because when we deal with God, we are dealing with the triune Spirit Godhead. Thus Father, Son, and Spirit are all involved, not Christ alone.