[K] So Kay, on this passage, in the Speaker's Commentary.
If this is at all the course of the Writer's exposition, there is nothing arbitrary in the sequel to it. He explains the enigmatic Psalm by finding in it the crucified and self-offering High Priest of our profession. Of Him "the roll of the book" had spoken, as the supreme doer and bearer for us of the will of God. His sacred Body was the Thing indicated by the prophetic altars of Aaron. When He "offered" it, presenting it to the eternal Holiness on our behalf, when He let it be done to death because we had sinned, so that we might be accepted because it, because He, had suffered—then did He "fill" the types "full" of their true meaning, and so close their work for ever.
Yes, that work was now for ever closed by the attainment of its goal. Moreover, His work of sacrifice and of offering, of suffering and of presentation, was for ever finished also. This is the burthen and message of the whole passage (verses 11-18). "Once for all" (ἐφάπαξ), "once for ever," the holy Body has been offered (ver. 10). "He offered one sacrifice for sins in perpetuity," εἰς τὸ διηνεκές (ver. 12). And therefore, not only for the priests of the old rite but for the High Priest of the heavenly order, "there is no more offering for sin" (ver. 18).
And why? Because, for the new Israel, for the chosen people of faith (ver. 39), the supreme sacrifice and offering has done its work. It has "sanctified" them (verses 10, 29); that is to say, it has hallowed them into God's accepted possession by its reconciling and redeeming efficacy. For its virtue does much more than rescue; it annexes and appropriates what it saves. It has "perfected" them (ver. 14); that is to say, it has placed them effectually in that position of complete "peace with God" which guilt while still unsettled makes impossible. It has "put them among the children," within the home circle of Divine love. It has done this "in perpetuity, "εἰς τὸ διηνεκές (ver. 14); that is to say, they will never to the very last need anything but that sacrifice and offering to be the cause and the warrant of their place within that home. "Their sins and their iniquities" their reconciled Father "will never remember any more" against them (ver. 17), in the sense that the sacrifice once presented on their behalf will be before Him every moment in the person of the Self-Sacrificer, who sits beside Him, "appearing for us." They are the Israel of the great New Covenant. And that covenant, as we have already remembered (viii. 7-13), provides for the spiritual transformation of the wills of the covenanters; the law of their God shall be "written on" their very minds; that is to say, they shall will His will as their own. But such a "writing" demands, by the very nature of things, that first, not last, there should be an absolute remission. For without remission there could not be inward peace, nor therefore filial and paternal harmony. So, for this deep mass of reasons, the new Israelites are first wholly accepted for the sake of their self-offered High Priest, that then they may be wholly transformed by His power, working through His peace, within themselves.
The great closing paragraphs of the chapter (verses 19-39) are one long application of this sublime finality of the one Offering and this presentness of our complete acceptance. First, the new Israelite, his "heart sprinkled from an evil conscience" (ver. 22), released, that is to say, by the applied Sacrifice from the haunting sense of guilt, and having his "body washed with pure water," the baptismal sign and seal of the covenant blessing, is to behave as what he is—the child at home. That home is the Holy Place; it is the very Presence of his God; but it is home. He is to pass into that sanctuary, along the pathway traced by the blessed blood, not hesitating, but with the "boldness" of an absolute reliance, perfectly free while perfectly and wonderingly humbled; "with a true heart, in fulness, in full assurance, of faith" (ver. 22). He is to hold fast his avowal of assurance, and meanwhile he is to animate the brethren round him to a holy rivalry (ver. 24) of love and zeal. He is to maintain all possible worshipping union with them, in the dawning light of the promised return of the now enthroned High Priest (ver. 25).
Then, further, the new Israelite is to cherish the grace of godly fear. The "boldness" of the loyal child is to go along with the clear recollection that outside the holy home there lies only "a wilderness of woe." To leave it, to turn back from it, to be a renegade from covenant joys, is no mere exchange of the best for the less good. It means multiplied and capital rebellion. No legal shadow-sacrifices will shelter now the soul that forsakes the eternal High Priest and casts His Self-Sacrifice aside. To do that is to set out towards a hopeless retribution, towards the fire of judgment, the vengeance of the living God (verses 26-31).
With tender urgency he pleads for fresh memories and fresh resolves (verses 32-35). He recalls to them days, not long ago, when they had borne shame and loss, "a conflict of sufferings," fellowship with outcast and imprisoned saints, spoiling of their own possessions—all made more than bearable by the joy of their wonderful "enlightenment" (ver. 32). Let them do so still, in full view of the coming crown. Let them grasp afresh the glorious privilege of "boldness" (ver. 35), reaffirming to themselves with strong assurance that they are "sanctified," "perfected," at home with God in Christ. Let them rise up and go on in that noble "patience" (ver. 36) which "suffers and is strong." It is only "a very little while" before the High Priest will reappear. And the "faith" which takes Him at His word will, as the prophet witnesses (Hab. ii. 4), bridge that little while with a "life" which cannot die. To "shrink back," as the same seer in the same breath warns us, is to lose the smile of God in a final ruin. But that, for us, cannot be; we, in His mercy, relying upon the faithful Promiser, attain "the saving of the soul."
Now, as then, the tenth chapter of the Hebrews points with a golden rod to the one path of life, and peace, and perseverance to the end. "Rejoice in the Lord; for you it is safe" (Phil. iii. 1). The "boldness" of a humble assurance of a present and a great salvation traces the way for us, as it traced the way of old, through holiness to Heaven.