“Avraham willed all that he possessed to Yitzchak; but to Avraham’s sons by concubines Avraham gave gifts while he was still living, and he sent them away from his son Yitzchak eastward, to the land of the East.” (Genesis 25:5-6) What do we really own? What do we really possess? And what were the gifts Avraham gave his sons by his concubines after giving all that he possessed to Yitzchak?