Hebrews 8:5
These priests serve [in a sanctuary] that is [only] a copy and a foreshadow of the heavenly one. Now Moses was warned [by God] when he was about to build the Tabernacle, for God said [Ex. 25:40], "See that you make everything according to the pattern that was shown to you on the mountain [i.e., Mount Sinai]."
Hebrews 9:23
Therefore, it was necessary for the copies of the heavenly things [i.e., the Tabernacle, its furniture and utensils, etc.] to be [ceremonially] cleansed by these things [i.e., the blood of animal sacrifices], but the heavenly things themselves [i.e., the church, both on earth and in heaven] require better sacrifices than these [i.e., the sacrifice of Christ].