Hebrews 9:21 - Matthew Poole's English Annotations on the Holy Bible

Moses did not only sprinkle the book of the covenant with blood, but the tabernacle itself, yearly, on the atonement day, as is charged, Leviticus 16:14,16,17. For as the altar and persons were to be atoned for, so was the tabernacle itself, Hebrews 9:18,20. First they were sprinkled, and then anointed, Leviticus 8:10,11, as the gospel tabernacle was in the truth of it, 1 Corinthians 6:11. All the garments and vessels of that priesthood were thus to be purified, typifying how unclean all the persons ministering with them, and atoned for in and by them, were; and how polluting all things, and polluted by them, till they were purified by the blood of Christ.