What all four stories tell us is that there comes a time for each of us when we must make an ultimate decision as to who we are. It is a moment of existential truth. Lot is a Hebrew, not a citizen of Sodom. Eliezer is Abraham's servant, not his heir. Joseph is Jacob's son, not an Egyptian of loose morals. Moses is a prophet, not a priest. To say yes to who we are, we have to have the courage to say no to who we are not. Pain