Seventh-day Adventists believe in the Trinity, the deity of Jesus, and his literal Second Coming, which puts them closer to biblical Christianity than many other groups. But they also hold distinctive teachings: Saturday Sabbath worship as a test of loyalty to God, the “investigative judgment” that began in 1844, and the prophetic authority of Ellen G. White. These beliefs can undermine the assurance of salvation by grace that the Bible offers.
Born from the Great Disappointment
The Adventist story begins with William Miller, a Baptist preacher who studied the prophecies of Daniel and Revelation. Using Daniel 8:14, Miller and his followers concluded that Jesus would return on October 22, 1844. Thousands waited, some after selling their possessions. When the day came and went, it became known as the Great Disappointment. Jesus had already warned about this kind of date-setting.
Matthew 24:36 “But about that day or hour no one knows, not even the angels in heaven, nor the Son, but only the Father.”
Most of Miller’s followers walked away, but a small group believed the date was right and the event had been misunderstood. Hiram Edson taught that Jesus had entered a new phase of ministry in heaven rather than returning to earth. Joseph Bates promoted Saturday Sabbath-keeping, and Ellen G. White’s visions helped unify these ideas. The Seventh-day Adventist Church was officially organized in 1863 and today reports more than 20 million members worldwide, with a strong emphasis on health, education, and missions.
Where Adventists and Christians Agree
It’s important to be fair. Unlike Mormons or Jehovah’s Witnesses, Adventists affirm the Trinity and teach that Jesus is fully God and fully man. They believe in the authority of Scripture, salvation through Christ, the resurrection of the dead, and Jesus’ literal, visible return. That last belief is right there in their name.
1 Thessalonians 4:16 For the Lord himself will come down from heaven, with a loud command, with the voice of the archangel and with the trumpet call of God, and the dead in Christ will rise first.
Because of this shared ground, Christians have debated for about 70 years whether Adventism should be called a cult or simply a group with serious doctrinal errors. Many Adventists are sincere followers of Jesus. The concern isn’t with everything they believe, but with a few teachings that can quietly shift the foundation of salvation from Christ’s finished work to our own faithfulness.
The Sabbath Question
Adventists teach that the fourth commandment to keep the Sabbath on Saturday is still binding today. Many also teach that in the future, enforced Sunday worship will become the “mark of the beast,” making Sabbath-keeping a test of loyalty to God. Ellen White once wrote that it “means eternal salvation to keep the Sabbath holy unto the Lord,” a statement that can easily lead to a legalistic mindset.
The New Testament never commands Christians to keep a Saturday Sabbath. Paul treats the day of worship as a matter of conscience (Romans 14:5) and explains that the Sabbath pointed forward to something greater.
Colossians 2:16-17 Therefore do not let anyone judge you by what you eat or drink, or with regard to a religious festival, a New Moon celebration or a Sabbath day. These are a shadow of the things that were to come; the reality, however, is found in Christ.
Rest is still a good gift from God, and rhythms of rest are healthy for every believer. You can read more in What Is the Fourth Commandment All About? But our true rest is found in Jesus, not in a particular day of the week.
Investigative Judgment and Assurance
To explain 1844, Adventists developed the doctrine of the investigative judgment. They teach that Jesus entered the Most Holy Place of the heavenly sanctuary that year and began reviewing the lives of professed believers to confirm who will be saved. Combined with the authority given to Ellen White’s writings, this can leave people wondering whether they’ve been faithful enough. Adventists also teach soul sleep and the eventual annihilation of the lost rather than eternal punishment.
The Bible offers believers something far better than an open case file. Because Jesus’ sacrifice is complete, the verdict for those who trust him has already been given.
Romans 8:1-2 Therefore, there is now no condemnation for those who are in Christ Jesus, because through Christ Jesus the law of the Spirit who gives life has set you free from the law of sin and death.
If you have Adventist friends, start with the many things you share: love for Jesus, respect for Scripture, and hope in his return. From there, gently point to the finished work of Christ and the rest he offers to everyone who is weary and burdened.
The Takeaway
Seventh-day Adventists believe much of what Christians believe about God and Jesus, but their teachings on the Sabbath, the investigative judgment, and Ellen White’s authority can undermine assurance of salvation. Start with common ground and point to the freedom found in Christ’s finished work.
