I looked this up, and it seems to me that the evidence of the existence of Judaism 4000 years ago in these insciprtion is in the proto-Sinaitic one, "Some scholars (Darnell
et al.) think that the רב
rb at the beginning of Inscription 1 is likely
rebbe (chief; cognate with
rabbi); and that the אל
ʾl at the end of Inscription 2 is likely
ʾel "god"."
Proto-Sinaitic script - Wikipedia
@shunyadragon
'Some scholars' is kind of vague.
Actually it is not evidence of Hebrew, but proto-Sinaitic roots found in Egypt for all the written languages of the Middle East, in particular of Egyptian hieroglyphics where these are found.
The problem with this interpretation is that, yes this
maybe as described in the reference of an ancient proto-Sinaitic symbol for 'chief god.' these symbols represent the roots of all written sinaitic languages like Egyptian and Canaanite which developed written words for their Gods, and it cannot be reasonably concluded that it refers to the Hebrew God 'El.' The direct reference in the references you cite is that these inscriptions found in Egypt are likely the primitive forms of hieroglyphics as described in the table in the reference as well as root symbols of other languages The Hebrew written language evolved much later evolved earlier written scripts,
Note from an earlier reference that later languages that evolved from these early proto- Sinaitic symbols; They are Semitic Canaanite languages included Amorite, Edomite,
Hebrew, Ammonite, Moabite, Phoenician (Punic/Carthaginian), Samaritan
Hebrew, Ekronite and Sutean.