Nephi makes a record after "the learning of the Jews and the language of the Egyptians."
The Book of Mormon: An Account Written by the Hand of Mormon, upon Plates Taken from the Plates of Nephi (Palmyra, NY: Joseph Smith Jr., 1830), 5, The Joseph Smith Papers website, accessed April 22, 2022
I make a record in the language of my father, which consists of the learning of the Jews and the language of the Egyptians. And I know that the record which I make, to be true; and I make it with mine own hand; and I make it according to my knowledge.