In the Hebrew Bible, the firstborn son is the one who inherits his father's position as head of the family.根据《希伯来圣经》，长子是继承父亲家庭首领位置的人。He is very much the head of the family.他实际上是一家之长。 After his father's death he became the head of the family.父亲去世后他成了一家之主。