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18 There is, on the one hand, the abrogation of an earlier commandment because it was weak and ineffectual
18. For there is verily a disannulling, or abrogation, etc. As the Apostle’s discourse depends on this hinge, that the Law together with the priesthood had come to an end, he explains the reason why it ought to have been abolished, even because it was weak and unprofitable. And he speaks thus in reference to the ceremonies, which had nothing substantial in them, nor in themselves anything available to salvation; for the promise of favor annexed to them, and what Moses everywhere testifies that God would be pacified by sacrifices and that sins would be expiated, did not properly belong to sacrifices, but were only adventitious to them. For as all types had a reference to Christ, so from him they derived all their virtue and effect; nay, of themselves they availed nothing or effected nothing; but their whole efficacy depended on Christ alone
But as the Jews foolishly set up these in opposition to Christ, the Apostle, referring to this notion, shows the difference between these things and Christ. For as soon as they are separated from Christ, there is nothing left in them, but the weakness of which he speaks; in a word, there is no benefit to be found in the ancient ceremonies, except as they refer to Christ; for in this way they so made the Jews acquainted with God’s grace, that they in a manner kept them in expectation of it. Let us then remember that the Law is useless, when separated from Christ. And he also confirms the same truth by calling it the commandment going before; for it is a wellknown and common saying, that former laws are abrogated by the latter. The Law had been promulgated long before David; but he was in possession of his kingdom when he proclaimed this prophecy respecting the appointment of a new priest; this new Law then annulled the former.