While dictating to Oliver Cowdery, Joseph Smith would occasionally become confused as to where he was in his storyline. This is understandable since he probably reviewed huge sections of data prior to dictation. The act of concentration was no doubt made easier by having his face buried inside a hat to exclude everything around him. Occasionally, a hiccup in focus would shine through, and he’d repeat himself. In the following example, it happened in consecutive verses:

“[B]ut when Moronihah had discovered this he immediately sent fortt Lehi with an army round about to HEAD THEM BEFORE THEY SHOULD COME TO THE LAND BOUNTIFUL & thus he did & he did HEAD THEM BEFORE THEY CAME TO THE LAND BOUNTIFUL…”

Helaman 1:28-29, The Handwritten Book of Mormon (West Valley City, UT: Dan Wees, August 2017), 511; emphasis added.