Isaiah 50:3
I clothe the heavens with blackness
Here the typesetter for the 1905 LDS edition accidentally set the singular heaven instead of the plural heavens, the reading of the earliest extant source (the printer’s manuscript) as well as the corresponding King James text. This 1905 reading also appears in the 1907 LDS vest-pocket edition and the 1911 large-print Chicago edition. The 1920 LDS edition restored the original plural.
Summary: Maintain in 2 Nephi 7:3 the original plural “the heavens”, which agrees with the corresponding plural reading in the King James Bible.