Jos 24:2 And Joshua said to all the people, "Thus says the Lord God of Israel: 'Your fathers, including Terah, the father of Abraham and the father of Nahor, dwelt on the other side of the River in old times; and they served other gods."
God called Abraham out from his Chaldean family in Ur, who were idolaters. After the death of idolater Terah at Haran, God sent Abraham into the Promised Canaan land. At that time the descendents of Ham (Ham - in Hebrew means black in colour) dwelled in Canaan, Egypt and the rest of Africa.
Gen 11:28 And Haran died before his father Terah in his native land, in Ur of the Chaldeans.
God called Abraham a Hebrew
Gen 14:13 Then one who had escaped came and told Abram the Hebrew, for he dwelt by the terebinth trees of Mamre the Amorite, brother of Eshcol and brother of Aner; and they were allies with Abram.
Abraham and Lot were monotheists, God fearing and righteous. God called them Hebrews instead of Chaldeans, who were idolaters.
2 Pet 2:7-8 and delivered righteous Lot, who was oppressed by the filthy conduct of the wicked (for that righteous man, dwelling among them, tormented his righteous soul from day to day by seeing and hearing their lawless deeds)—
Our Faithful Lord God Almighty
Genesis 12:1, 4a Now the Lord had said to Abram: "Get out of your country, from your family and from your father's house, to a land that I will show you... So Abram departed as the Lord had spoken to him, and Lot went with him.
All those who believed God and left Ur were blessed by being called Hebrews. The descendants of Abraham and Lot were all given land as He promised them when He took them out of Ur.
1. Ishmael - the eldest son of Abraham from Hagar inherited the desert land and wilderness of the Arabian Peninsula. He is the ancestor of the Arab race.
Note Those given land in Canaan had to dispose of the giants (human hybrid just like those in Noah's time) dwelling there.
2. Esau - Isaac's eldest son who sold his birthright was given the land of Seir
Deu 2:22 just as He had done for the descendants of Esau, who dwelt in Seir, when He destroyed the Horites from before them. They dispossessed them and dwelt in their place, even to this day.
3. Moab - Lot's eldest son inherited the land of Ar
Deu 2:9-10 Then the Lord said to me, 'Do not harass Moab, nor contend with them in battle, for I will not give you any of their land as a possession, because I have given Ar to the descendants of Lot as a possession.'
4. Ben-Ammi - Lot's youngest son, the ancestor of the people of Ammon
Deu 2:19 And when you come near the people of Ammon, do not harass them or meddle with them, for I will not give you any of the land of the people of Ammon as a possession, because I have given it to the descendants of Lot as a possession.'
5. Jacob or Israel - the ancestor of the Israelites.
Gen 43:32 So they set him a place by himself, and them by themselves, and the Egyptians who ate with him by themselves; because the Egyptians could not eat food with the Hebrews, for that is an abomination to the Egyptians.
God sent Jacob's descendants into Egypt so that they could not become idolaters. After 400 years and just before the exodus from Egypt, God called them Israelites to differentiate them from the other Hebrews (Ishmaelites, Edomites, Moabites and Ammonites) in the neighbourhood.
Exo 9:7a Then Pharaoh sent, and indeed, not even one of the livestock of the Israelites was dead.