The 1837 edition omitted the conjoined predicate “and shall reject the fullness of my gospel”, the result of the typesetter’s eye skipping down from the first instance of my gospel and shall to the second one in the passage. This predicate was restored in the 1908 RLDS edition and in the 1981 LDS edition.
Summary: Maintain in 3 Nephi 16:10 the conjoined predicate “and shall reject the fullness of my gospel”; this reading is found in both 𝓟 and the 1830 edition.