What is the common factor between Abraham Jacob Joseph and Moses?

Answer 1

The unmerited grace of Almighty God...

Jewish answer:

Each of these four lived in the early days of Judaism and had something to do with the formation of the Jewish people. See the attached Related Link for a full timeline.

Abraham:

According to tradition, Abraham founded Judaism. The Kuzari (Rabbi Judah HaLevi, 1075-1141) states that Abraham was gifted with high intelligence; and, as Maimonides (1135-1204) describes, Abraham didn't blindly accept the ubiquitous idolatry of his time. The whole populace had been duped, but the young Abraham contemplated the matter relentlessly, finally arriving at the conclusion that there is One God and that this should be taught to others as well. This is what is meant by his "calling out in the name of the Lord" (Genesis ch.12).

Later, God told Abraham in prophecy to move to the Holy Land, which is where Abraham raised his family. He continued his contemplations, eventually arriving at the attitudes and forms of behavior which God later incorporated into the Torah given to Moses. Abraham, with God's help, singlehandedly trounced the supremacy of the evil Nimrod. He received God's promise of inheriting the Holy Land (Genesis 13). He strove to raise a family (Genesis ch.15, 17, and 24) which would serve God (Genesis 18:19); and God eventually blessed his efforts, granting him many children (ibid., ch.16, 21 and 25), as He had promised (Genesis ch.17). Abraham founded the Jewish people and lived to see his work live on in the persons of Isaac and Jacob; and he taught many other disciples as well (Talmud, Yoma 28b). He saved the population of the south of Canaan from invading foreign kings (Genesis 14); and he was feared by neighboring kings (ibid., ch.12 and 20). Abraham gave tithes (Genesis ch.14), made a covenant with God (Genesis ch.15 and 17), welcomed guests into his home (Genesis ch.18) unlike the inhospitable Sodomites (Genesis ch.19), prayed for people (Genesis ch.18), rebuked others when necessary (Genesis ch.20), eulogized and buried the deceased (Genesis ch.23), and fulfilled God's will unquestioningly (Genesis ch.22). He became renowned as a prince of God (Genesis 23:6).

All of these forms of behavior were based upon the ways of God, which Abraham comprehended through his contemplations. These, and similar personality traits, were the teachings of Abraham and his descendants.

It is therefore clear why God expresses His love for Abraham (Isaiah 41:8) and calls Himself the God of Abraham (Genesis 26:24), and says that Abraham obeyed Him fully (Genesis 26:5).

Jacob:

Jacob, son of Isaac and grandson of Abraham, was the third and last of the Patriarchs (Talmud, Berakhot 16b). He spent a lot of time in the tents (Genesis 25:27) studying his ancestors' teachings (Rashi commentary, ibid.); and eventually, like Abraham and Isaac before him, reached the level of prophecy, in which God spoke to him and promised His protection (Genesis 28:10-15).

When the opportunity presented itself, Jacob asked his brother Esau to sell him his first-born birthright (Genesis 25:29:34), since he sensed that Esau wasn't pious enough to fully deserve it. Thus began the fulfillment of the prophecy which Rebecca had heard, that Jacob would become the dominant of her two sons (Genesis 25:22-23).

Jacob's life was replete with tribulations. He managed to come out ahead despite the wiles of the deceitful Laban (Genesis 29:25 and 31:41) and the danger presented by the angry Esau (Genesis 27:41 and 32:12). There were painful events with his daughter Dinah (Genesis 34:1-7) and with his being separated for two decades from his beloved son, Joseph (Genesis ch.37); and his wife Rachel died at a young age in childbirth (Genesis 35:16-19).

These troubles were a portent for the tribulations of the Jews in their times of exile. But Jacob received, in prophecy, God's affirmation of His covenant and blessing (Genesis 28:13-14; 35:9-12; 46:2-4), signifying that the exile would eventually end.

These three, Abraham, Isaac and Jacob, were the founders of the Israelite (Jewish) people, both physically and spiritually; and God calls himself "the God of Abraham, Isaac and Jacob" (Exodus ch.3) eighteen times in the Torah.

Joseph:

1) It was thanks to him that our ancestors (Jacob and family) survived the famine (Genesis ch.46 and ch.50).

2) He was the only person from the time of Jacob until Moses who experienced prophecy in any form. (Joseph had prophetic dreams. Genesis ch.37.)

3) Joseph was viceroy in Egypt (Genesis ch.41); and it was thanks to him that the nation of Egypt survived the famine.

4) During the long sojourn of the Israelites in Egypt, Joseph took steps to preclude them from assimilating (Genesis 46:31-34).

5) Jacob considered him the most worthy of his sons (Genesis 37:3 and 49:26); and he was deemed important enough to comprise two of the twelve Israelite tribes (Genesis 48:3-5).

6) He was the ancestor of Joshua (1 Chronicles ch.7).

7) Joseph was steadfast in withstanding temptation (Genesis ch.39).

Moses:

Moses was an Israelite, a great-great grandson of Jacob. He was born 245 years after the death of Abraham. The time when Moses was born was when the Pharaoh ordered his people to kill all Jewish male infants because he (Pharaoh) was afraid that the Israelites would become too strong for him (Exodus ch.1-2). Moses' mother didn't want him to die. So she made a basket for him and put him in it to float in the Nile reeds. He was found by the Pharaoh's daughter, who took pity on him (Exodus ch.2) and raised him as her own son. He was forced to flee after killing a cruel Egyptian taskmaster, and went to Midian, where he wedded the daughter of Jethro. He eventually achieved the highest level of prophecy (Deuteronomy ch.34) and was called upon by God (Exodus ch.3). He brought the Israelites out of Egyptian slavery (Exodus ch.12). He received the Torah from God (Exodus 24:12) and later recorded it in writing (Deuteronomy 31:24). He went up on Mount Sinai for 40 days and nights (Deuteronomy ch.9-10) and brought down the Two Stone Tablets with the Ten Commandments (Exodus 31:18). He brought the Israelites into the covenant with God (Exodus ch.19 and ch.24), and he oversaw the building of the Tabernacle (Exodus ch.35-40). He was the humblest of men and the greatest of prophets (Numbers ch.12).

Answer 2

All had great faith in God and were used by Him. All lived in Egypt at some point in their lives.