Thematic Bible: The whole system of mosaic rites

For it was a figure for the time then present, in which were offered both gifts and sacrifices that could not make him who did the service perfect as regards the conscience, which stood only in meats and drinks, and different kinds of washings and fleshly ordinances, imposed on them until the time of reformation.

From which we see that neither was the first covenant dedicated without blood. For when Moses had spoken every precept to all the people according to the Law, he took the blood of calves and of goats, with water and scarlet wool and hyssop, and sprinkled both the book, and all the people, saying, "This is the blood of the covenant which God has enjoined to you." read more.
And likewise he sprinkled with blood both the tabernacle and all the vessels of the ministry. And almost all things are by the law purged with blood, and without shedding of blood is no remission. Therefore it was necessary that the patterns of things in the heavens should be purified with these, but the heavenly things themselves were purified with better sacrifices than these.