Hebrews 9:4-6 Modern English Version (MEV)
4 which contained the golden censer and the ark of the covenant overlaid with gold, containing the golden pot holding the manna, Aaron’s rod that budded, and the tablets of the covenant. 5 Above the ark were the cherubim of glory overshadowing the mercy seat. Concerning these things we cannot now speak in detail.
6 Now when these things were thus ordained, the priests would regularly go into the first part, conducting the services of God.