Now the first [covenant] also had regulations for ministry and an earthly sanctuary.
References for Hebrews 9:1
For a tabernacle was set up; and in the first room, which is called "the holy place," were the lampstand, the table, and the presentation loaves.
References for Hebrews 9:2
Behind the second curtain, the tabernacle was called "the holy of holies."
It contained the gold altar of incense and the ark of the covenant, covered with gold on all sides, in which there was a gold jar containing the manna, Aaron's rod that budded, and the tablets of the covenant.
The cherubim of glory were above it overshadowing the mercy seat. It is not possible to speak about these things in detail right now.
These things having been set up this way, the priests enter the first room repeatedly, performing their ministry.