Alice C. Linsley
Readers have asked about the language Abraham spoke. Before we can answer that, we must identify Abraham as Hebrew (Habiru) and a Horite ruler. Some Horite rulers are listed in Genesis 36. They ruled over ancient Edom, called "Idumea" by the Greeks.
Abraham's territory was in this region. His territory extended between the settlements of this two wives, Sarah and Keturah. Sarah resided in Hebron and Keturah in the region of Beersheba to the south. The settlements mark the northern and southern boundaries of Abraham's territory.
B.C. 3800-3000 - Nekhen flourished on the Nile, the oldest known site of Horite worship
B.C. 2490-2415 - Noah, lived in the region of Lake Chad when the Sahara experienced a wet period.
B.C. 2438-2363 - Ham, son of Noah
B.C. 2417-2342 - Kush, son of Ham; father of Nimrod and Ramah
B.C. 2290-2215 - Nimrod, ruler in the Tigris-Euphrates Valley
B.C. 2238-2163 - Arpacshad, son by Asshur's daughter
B.C. 2217-2042 - Salah, likely Arpacshad's son by his sister-wife.
B.C. 2196-2121 - Eber, likely Salah's son by his sister-wife.
B.C. 2175-2100 - Peleg, Eber's son. Peleg's brother was Joktan
B.C. 2154-2079 - Reu
B.C. 2133-2058 - Serug, Reu's son.
B.C. 2112-2037 - Nahor, Serug's son
B.C. 2091-2016 - Terah, Nahor's son
B.C. 2039-1964 - Abraham, Terah's son
B.C. 1987-1912 - Joktan, Abraham's firstborn son by his cousin bride, Keturah.
This aligns with Sir Alan H. Gardiner's findings. He concluded in 1916 that the Sinaitic signs were derived from Egyptian Hieroglyphic signs based upon their acrophonic value. Gardiner’s research established a relationship between the Sinaitic signs and the North Semitic alphabet. So it appears that the Egyptian signs were the basis of a variety of related scripts used from the Nile to the Tigris-Euphrates valley.
Related reading: What Language Did Abraham Speak?; Thamudic Scripts; Proto-Elamite Script; Horite Priests and the Habiru; Gardiner's Signs (Middle Egyptian)