In recent years, an increasing number of Seventh-day Adventists have refused to believe that the Holy Spirit is the third person of the Godhead. They argue with the Bible and sometimes quote the Spirit of Prophecy.
trinity
The Godhead
Since the times of the early church, many variant teachings have been developed in regard to the Godhead and the deity of Christ. As people came into the second Advent movement from many different churches and backgrounds, it is not surprising that there would be different individuals who had contrary ideas about the Godhead.