On p. 452 of the 1879 Book of Mormon, we read the following note to "Ezias" in Helaman 8:20 by Orson Pratt:
i.
Ezias may have been identical with Esaias who lived contemporary with Abraham.
See Doc. and Cov. 84:11-13.
The Printer's Manuscript of the Book of Mormon reads "Ezaias" (with "Ezias" being the reading for all printings of the Book of Mormon from 1830 onwards):