In 1990, The Sermon at the Temple and the Sermon on the Mount, by John W. Welch, presented a thorough going LDS interpretation of the Savior's greatest sermon, drawing on insights from Jesus' "Sermon at the Temple" in 3 Nephi to shed light on his "Sermon on the Mount" in the gospel of Matthew.
Illuminating the Sermon at the Temple & the Sermon on the Mount builds on that 1990 book. FARMS's decision to bring this eye-opening book back into print afforded Welch the opportunity to make substantial additions based on insights gleaned throughout a decade of continuing research.
But his analysis remains basically unchanged: understanding the Sermon as a temple text reveals that it has far more power and unity than a mere collection of miscellaneous sayings of Jesus. Seeing the teachings and commandments of the Sermon on the Mount in its Book of Mormon setting--at the temple, in connection with sacred ordinances of covenant making--opens new insights into the meaning and significance of the Sermon.