Cyrus H. Gordon Quote

The Samaritans (whose beginnings were pre-Josianic) have a Pentateuch quite similar to the familiar Jewish Pentateuch.... our Pentateuchal text was fairly well established before the rift between the Samaritans and Judeans.

Ch.VIII Further Observations on the Bible - The Common Background of Greek and Hebrew Civilizations (1965 [1962])