In an interesting paper comparing Second Nephi to ancient legal documents, Martin Evans commented on the term “brother of Nephi”:
Another aspect comparable to that
found in legal records is the term “brother of Nephi.” Reference to a speaker’s
brother never occurs in biblical superscriptions. Biblical superscriptions
typically use a patronym. Yet, Jacob is not referred to as “son of Lehi”;
instead, he is the “brother of Nephi.” Such titles, though uncommon, are found
in Neo-Babylonian legal records. In YOS 7,10 we read,
ḫašdaya, brother of Iddinaya, and said thus in the assembly. (Martin
Evans, “Second Nephi as a Legal Document,” in Defending the Book of Mormon:
Proceedings of the 2023 FAIR Virtual Conference, ed. Scott Gordon, Trevor
Holyoak, and Jared Riddick [Redding, Calif.: FAIR, 2025], 239-40)
For those
curious, here is the background and translation of this Babylonian text:
3. Reports about Theft in High
Places
Text: YBC 4176
Copy: Tremayne 1925 (YOS 7), No.
10
Translation/Discussion: Dandamaev
1984, 429–30; Joannès 2000a, 29; 2000b, No. 160 (pp. 217–18); Holtz 2009, 103–4
Place of Composition: Uruk
Date: 1.II.1 Cyr (22 April, 538
BCE)
Nabû-rēṣua, a slave of Lâbāši-Marduk, reports to the šatammu and the royal official in charge of the
Eanna that his master’s son, Iddinaya, stole and hid a gem, apparently from a
cultic image that was in Ištar-aḫa-iddin’s care. Nabû-lū-dāri, another slave,
confirms Nabû-rēṣua’s testimony. Ḫašdaya, brother of the suspected thief,
Iddinaya, also reports finding the stolen object on Lâbāši-Marduk’s property
after it had been taken from Ištar-aḫa-iddin’s storehouse.
. . .
(9–11) And Nabû-lū-dāri, slave of
Bāniya son of Taribi testified, and Ḫašdaya, brother of Iddinaya, said thus in
the assembly: (Shalom E. Holtz, Neo-Babylonian Trial Records:
Translation [Writings from the Ancient World 35; Atlanta, Ga.: Society of
Biblical Literature, 2014], 20, 21)
The following is Holtz’s transliteration of the Babylonian text:
9. ù dNA3-lu-u-da-a-ri
lu2qal-la šá ba-ni-ia A-šú
10. šá ta-ri-bi uk-ti-in ù mḫaš-da-a ŠEŠ šá SUM-na-a
11. ina UKKIN iq-bi um-ma NA4 mur-ḫa-ši-tu šá ⸢ul⸣-tu E2 šu-⸢tu⸣-um-mu (Shalom E. Holtz, Neo-Babylonian Trial
Records: Text [Writings from the Ancient World 35; Atlanta, Ga.: Society of
Biblical Literature, 2014], 21-22)