This universal redemption will be realized in the future where God will bring all people to repentance. This repentance can happen while a person lives or after he has died and lived again in the millennium or some future state. Additionally, a few universalists even maintain that Satan and all demons will likewise be reconciled to God. Nevertheless, both facets of universalistic belief are in error. But, it is important to note that holding to universalism it itself does not make one a non-Christian.
Universalism alone is simply a non-essential theological error held by many.
However, there are those within the universalist camp who also deny the doctrine of the Trinity and, thereby, the incarnation of the Word of God as God the Son. They also deny the personhood and deity of the Holy Spirit . Usually, these denials are held by Unitarian Universalists , though others who are not of the Universalist camp also deny the Trinity. Those who deny these essentials cannot be classified as Christians. To deny the deity of Christ, is to deny one of the essential doctrines of salvation.