They deal only with food and drink and different kinds of special washings. They are rules that deal with things outside our bodies. People had to obey them only until the new covenant came.
Christ came to be the high priest of the good things that are already here. When he came, he went through the greater and more perfect holy tent. The tent was not made by people. In other words, it is not a part of this creation.
References for Hebrews 9:11
He did not enter by spilling the blood of goats and calves. He entered the Most Holy Room by spilling his own blood. He did it once and for all time. He paid the price to set us free from sin forever.
The blood of goats and bulls is sprinkled on people. So are the ashes of a young cow. They are sprinkled on people the Law called unclean. The people are sprinkled to make them holy. That makes them clean on the outside.
But Christ offered himself to God without any flaw. He did this through the power of the eternal Holy Spirit. So how much more will his blood wash from our minds our feelings of guilt for committing sin! Sin always leads to death. But now we can serve the living God.
That's why Christ is the go-between of a new covenant. Now those God calls to himself will receive the eternal gift he promised. They will receive it now that Christ has died to save them. He died to set them free from the sins they committed under the first covenant.
What happens in the case of a will? It is necessary to prove that the person who made the will has died.
A will is in effect only when somebody has died. It never takes effect while the one who made it is still living.
That's why even the first covenant was not put into effect without the spilling of blood.
Moses first announced every commandment of the law to all the people. Then he took the blood of calves. He also took water, bright red wool and branches of a hyssop plant. He sprinkled the scroll. He also sprinkled all of the people.
He said, "This is the blood of the covenant God has commanded you to keep."(Exodus 24:8)