I have always been curious
Essentially, Seventh-Day Adventist teachings are rooted in the works of Christ as is recorded in the Bible. The most glaring discrepancy between Seventh-Day Adventists and other Christian churches is the day they assign for worship.
According to Scripture, Seventh-Day Adventist Christians still believe that the entire Bible is true, and nothing has change. The ten Commandment is still binding, which includes the 4th commandment, that is the observance of the Seven-day Sabbath. Recorded in Exodus 20.
Seventh-Day Adventist Christians doesn’t worship on Sabbath to be save, but when one are saved from sin and it’s guilt, you keep the Sabbath to show your allegiance, and obedience to the Creator. – Elder Shaw