The original text had at least 14 occurrences of spake as the past participle rather than the standard spoken. For the clear majority of cases, however, the earliest text had the standard spoken (70 times). Most of the 14 examples of spake as the past participle were edited to the standard spoken in either the first or second edition. The critical text will, of course, restore all past participial examples where the earliest textual evidence supports spake rather than spoken. For a complete discussion, see past participle in volume 3.
Summary: Restore the dialectal use of the simple past-tense form spake as the past participial form whenever it is supported by the earliest textual sources (as here in 1 Nephi 3:30).