Hebrews 9:10

but into the second the high priest alone, once in the year, not without blood, which he offers for himself and for the errors of the people.

The Holy Spirit is indicating this, that the way into the Holy Place wasn’t yet revealed while the first tabernacle was still standing.

This is a symbol of the present age, where gifts and sacrifices are offered that are incapable, concerning the conscience, of making the worshiper perfect,

But Christ having come as a high priest of the coming good things, through the greater and more perfect tabernacle, not made with hands, that is to say, not of this creation,

nor yet through the blood of goats and calves, but through his own blood, entered in once for all into the Holy Place, having obtained eternal redemption.

For if the blood of goats and bulls, and the ashes of a heifer sprinkling those who have been defiled, sanctify to the cleanness of the flesh,