Answer:
The patriarchs of Israel were Abraham, Isaac, Jacob and Jacobs twelve sons, the progenitors of the twelve tribes of Israel. Abraham (originally called Abram) was the first patriarch. The Lord spoke to him in Ur of the Chaldeans and told him to move to Canaan. The Bible says that Abraham's faith in God was counted as righteousness. God made a covenant with Abraham and his wife Sarah. The Lord promised they would soon have a son and their descendants would be as numerous as the sands up the seashore. The Arabs regard themselves as descendants of Ishmael (born through Sarah's concubine Hagar) and consider Abraham the father of their race. Through the descendants of Isaac, Abraham is also the father of the Jewish people. This is a rather broad answer to the question. Maybe others would like to contribute to it.