Hebrews 9:6-9 RSV

6 These preparations having thus been made, the priests go continually into the outer tent, performing their ritual duties;
7 but into the second only the high priest goes, and he but once a year, and not without taking blood which he offers for himself and for the errors of the people.
8 By this the Holy Spirit indicates that the way into the sanctuary is not yet opened as long as the outer tent is still standing
9 (which is symbolic for the present age). According to this arrangement, gifts and sacrifices are offered which cannot perfect the conscience of the worshiper,