Abstract: To the ancient Israelite ear, the name Ephraim sounded like or connoted “doubly fruitful.” Joseph explains the naming of his son Ephraim in terms of the Lord’s having “caused [him] to be fruitful” (Genesis 41:52). The “fruitfulness” motif in the Joseph narrative cycle (Genesis 37–50) constitutes the culmination of a larger, overarching theme that begins in the creation narrative and is reiterated in the patriarchal narratives. “Fruitfulness,” especially as expressed in the collocation “fruit of [one’s] loins”, dominates in the fuller version of Genesis 48 and 50 contained in the Joseph Smith Translation, a version of which Lehi and his successors had upon the brass plates.