10, then it must have happened somewhere else in the genealogy than at the start.152 Nevertheless, many scholars see it as a problem that the value of a name such as Perez as a signifier cannot be unreservedly positive. Why use his genealogy? There is no attempt in Genesis to hide the fact that Perez came into the world as the result of an incestuous relationship between his mother and his grandfather, with Judah serving as the negative background for the praising of the chaste Joseph in Potiphar’s