<p>7:11 <i>Now if there was perfection through the Levitical priesthood (for under it the people received the law), what further need was there for another priest to arise after the order of Melchizedek, and not be reckoned after the order of Aaron?</i>- The argument is that the whole mention of Messiah having a priesthood after the order of Melchizedek would have been unnecessary if the Levitical priesthood and legal system could bring &quot;perfection&quot;. Paul forces through the logic of his position by reasoning that the &quot;need&quot; for the Melchizedek priesthood meant that this new priest must actually not be &quot;after the order of Aaron&quot; and therefore must not be a descendant of Aaron. I have previously noted that this kind of apparently forced argumentation would have been acceptable to those used to this kind of reasoning in the rabbinical interpretations of the Old Testament. But it is all the same logically forced, although from our Christian perspective it all makes good sense. I suggested on expounding Paul's obsession with the Jerusalem Poor Fund in 2 Corinthians that he had an obsessive streak within him, whereby he marshalled all possible evidence to support his positions and at points his logic and reasoning bears the hallmark of the obsessive. It could well be that we have a case of that here.</p>