Hebrews 9:6

Now when these things had been thus prepared, the priests always went into the first part of the tabernacle, performing the services.

Surrounding context

9:5 and above it were the cherubim of glory overshadowing the mercy seat. Of these things we cannot now speak in detail.

9:6 Now when these things had been thus prepared, the priests always went into the first part of the tabernacle, performing the services.

9:7 But into the second part the high priest went alone once a year, not without blood, which he offered for himself and for the people's sins committed in ignorance;

Translation and sources