The apostle Paul declares in Galatians 1:6–9:
Galatians 1:6-9
6 I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:
7 Which is not another; but there be some that trouble you, and would pervert the gospel of Christ.
8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
9 As we said before, so say I now again, if any man preach any other gospel unto you than that ye have received, let him be accursed.
This solemn warning forms the central test. The gospel Paul received “by the revelation of Jesus Christ” (Galatians 1:12) is the gospel of the grace of God (Acts 20:24; Ephesians 2:8–9; I Corinthians 15:1-4). Any message that adds requirements, alters the person and work of Christ, or introduces a different means of acceptance with God stands under the same curse—even if delivered by an angel.
1 The Gospel Paul Preached: Grace Alone through Faith Alone in Christ Alone
Paul’s consistent teaching across his epistles is unmistakable:
Salvation is a free gift grounded solely in the finished work of Christ—His death for our sins, burial, and resurrection (I Corinthians 15:1–4). The believer is sealed with the Holy Spirit of promise the moment he believes (Ephesians 1:13–14). No subsequent ordinance, temple rite, or progressive obedience can add to or complete that justification.
2 The Claim of Angelic Revelation in Mormonism
Joseph Smith stated that the angel Moroni delivered to him the gold plates from which the Book of Mormon was translated, and that further revelations established the restored church. Official Latter-day Saint teaching presents this as a restoration of the “fulness of the gospel” after a total apostasy.
Paul’s language is categorical: even an angel from heaven preaching a different gospel is to be accursed. The test is not the supernatural character of the messenger but the content of the message. If the message diverges from the grace of Christ already delivered to Paul, then it is “another gospel.”
3 Key Doctrinal Divergences from Paul’s Gospel
a. The Nature of God and Christ
Paul teaches one eternal God: “But to us there is but one God, the Father, of whom are all things, and we in him; and one Lord Jesus Christ, by whom are all things, and we by him” (I Corinthians 8:6). Christ is the eternal Son who “was made in the likeness of men” yet remains “equal with God” (Philippians 2:6–7; Colossians 1:15–17; 2:9).
Mormon doctrine teaches that God the Father was once a man who progressed to godhood, that there is a plurality of gods, and that faithful humans may likewise become gods. This contradicts Paul’s absolute monotheism and the unique deity of Christ.
b. The Means of Salvation
Paul insists justification is instantaneous and complete upon faith, apart from works of the law or any human performance. Mormon teaching, by contrast, presents salvation (especially exaltation to the highest degree of glory) as requiring faith, repentance, baptism by proper authority, reception of the Holy Ghost, temple ordinances (endowment, sealing), and continued obedience to the laws and ordinances of the gospel.
The Book of Mormon itself states, “for we know that it is by grace that we are saved, after all we can do” (2 Nephi 25:23). This addition of “all we can do” and mandatory ordinances directly contradicts Paul’s repeated assertion that grace and works are mutually exclusive (Romans 11:6; Galatians 2:21; 5:4). Paul warns the Galatians that those who seek to be justified by the law are “fallen from grace” (Galatians 5:4).
c. Authority and the Closed Nature of the Apostolic Gospel
Paul declares that the gospel he preached was the final revelation given to him for the Gentiles (Galatians 1:11–12; Ephesians 3:2–6). He places under a curse any subsequent message—even from an apostle or an angel—that differs from what had already been received.
Mormonism’s additional standard works (Book of Mormon, Doctrine and Covenants, Pearl of Great Price) and living prophetic authority introduce new doctrines and requirements unknown to Paul and the other apostles.
4 The Galatian Parallel Applied
The Galatian crisis involved Judaizers who added circumcision and law-keeping to faith in Christ. Paul did not merely disagree; he pronounced anathema. The principle is identical: any system that conditions full acceptance with God upon human performance, additional revelation, or institutional ordinances beyond the finished work of Christ is “another gospel.” The claim of angelic origin does not exempt it; Paul specifically includes “an angel from heaven” in the curse. The content, not the claimed source, decides the issue.
Measured by the standard Paul himself establishes in Galatians chapter 1 and throughout his epistles, the message of Mormonism is another gospel. It alters the nature of God, the person of Christ, the freeness of grace, and the sufficiency of faith alone. Where Paul proclaims justification as a completed gift received by faith, Mormonism presents a progressive path of ordinances and worthiness culminating in exaltation.
Paul’s warning remains: “If any man preach any other gospel unto you than that ye have received, let him be accursed.” The gospel of the grace of God stands complete in the finished work of Christ. Any addition, however sincerely believed or supernaturally claimed, stands outside the gospel of the grace of God.