The law of the gospel is one of several covenants made in the Latter-day Saint endowment ceremony. Interestingly, definitions used by church leaders have shifted since the days of Joseph Smith. For example, David O. McKay taught that it included scripture study, and Bruce R. McConkie referred to it as the “celestial law.” In this interview, independent scholar Samuel R. Weber explains the history of the law of the gospel, culminating in a definition included in the General Handbook.