Again the writer urges his readers not to return to the shadows of Old Testament Judaism, seeing that they had the reality in Christ. He even calls the teachings they were being tempted to adopt ‘strange’, in that they lead away from Christ to a shadow.
We are shown that Christ is the real food of the believer; there is nothing else that can satisfy the hunger of the soul. The Old Testament priests ate from the meat that was offered on the altar but it did not do them spiritual good. In contrast, there is grace in Christ Jesus which those who participate in Him may receive to the strengthening of their souls.
Finally, we see that Christ is the altar for the New Testament believer from which they may eat and find this grace - it is through His infinite and perfect sacrifice that they are cleansed and made acceptable before God. He is the sacrifice on the altar also. Those who cling to other remedies for sin have no right to Christ - He alone is the only way of salvation, and is received by faith alone.