What is the believer's current position and future completion according to this teaching?
The believer is presently in union with Christ, with the Head in Heaven, and remains on earth as an ambassador. One day the believer will be with Him and complete all that. Rejecting the Spirit's baptism instead leads to the Lake of Fire for the lost.
Les explains that the believer is already with Christ and in union with Him, while the Head is in Heaven; the believer is left as an ambassador here on earth until one day all will be with Him and complete all that. He sets this against the choice to become a believer and experience the baptism of the Spirit or to reject it and one day be placed into the Lake of Fire for the lost, citing Matthew 3:12. He also notes that at Jesus' baptism in Matthew 3, the Spirit of God descended like a dove and a voice from heaven affirmed, "This is My Beloved Son, in whom I am well pleased," one of the two instances in Scripture where all three members of the Trinity are present.