In summary, the author’s [of Hebrews] declaration that the regulation about Levitical priests is ‘weak and useless’ provides many interpreters with the basis for their claim that the author desires to prevent the addressees from returning to Jewish religion; however, even if the whole law is in view, the author does not present the law as deficient in its own right, only that it might be judged deficient when compared with the efficacy and scope of the offering of Jesus. - Eric Mason, 'The Epistle (Not Necessarily) to the "Hebrews"