… Unlike those high priests, He does not need to offer daily sacrifices—first for His own sins and then for the people’s, for He did this once for all when He offered up Himself.
— Hebrews 7:27
There were priests in the Old Testament, but now Christ, our great High Priest has come. He completed the work that they could only begin.
With a priest and an altar you have something else: you have a sacrifice. For hundreds of years, at God’s instruction, the ancient Hebrew priests offered sacrifices with many specific guidelines. There were daily sacrifices and specific annual offerings. They may have “forgiven” sins temporarily, but never permanently.
All of these sacrifices foreshadowed the once and for all sacrifice of Jesus Christ on the Cross. What He did is the basis for all forgiveness. His blood was much more precious than that of bulls and goats.
Read Hebrews 9-11 and you will notice that one word appears over and over and over again. It is a word that I recommend you underline. It is “once” or “one.” By one sacrifice Christ has forever reconciled us to God. There was only one sacrifice, and it took place upon the Cross 2,000 years ago. On that finished sacrifice all of our hopes are founded.