Hebrews 9:7-9

7But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people:

8The Holy Spirit thus signifying, that the way into the holiest of all was not yet revealed, while the first tabernacle was yet standing: 9Which was a figure for the time then present, in which were offered both gifts and sacrifices, that could not make him that did the service perfect, as pertaining to the conscience;