Hebrews 9:7-9

7But only the high priest ever entered the Most Holy Place, and only once a year. And he always offered blood for his own sins and for the sins the people had committed in ignorance.

8By these regulations the Holy Spirit revealed that the entrance to the Most Holy Place was not freely open as long as the Tabernacle and the system it represented were still in use.

9This is an illustration pointing to the present time. For the gifts and sacrifices that the priests offer are not able to cleanse the consciences of the people who bring them.