In the Book of Mormon, the resurrected Lord administered the sacrament to the Nephite multitude (3 Nephi 18:1–9), and explained that participating in this ordinance signaled “that ye are willing to do that which I have commanded you” (3 Nephi 18:10). Immediately afterwards, He commanded them to “watch and pray always,” and especially to “pray in your families unto the Father” (3 Nephi 18:15, 21).

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