Blood of Christ that has set us free

It is a breataking thing when we realize the blood Jesus sacrifcied for our sins.  Jesus died for give us life in him.
Recently, I had an infection in my finger.  This infection I didn't know what it was when I first had it.  I put hot water on it and tried to pop it many times.  Then finally on Saturday of that week I finally was able to pop it after it had grown to it's highest height.  This was after it had grown to it's highest height.  This infection eventually stared bleeding and pus came out.
Through the blood of Jesus Christ we are set free from our old life.  1 John 1:7 says "the blood of Jesus Christ, his Son, purifies us from all sin." This blood has set us under the new covenant in Christ Jesus.
The new covenant discussed in Hebrews has been established by Jesus through his death.  Heb 9:15 says "he is the mediator of a new covenant, so that those who are called may receive his eternal inheritance, since a death has occurred to that redeems them from the transgressions committed under the first covenant." We have this new life in Christ.
In this old covenant there was gifts and sacrifices by those guilty of sin while new covenant there is self sacrifice by the guiltless Christ.  The old covenant there were conditional promises and the new covenant is unconditional.  The old covenant is limited access to God and new covenant is unlimited access to God.
The old covenant forgiveness is earned and new covenant forgiveness is bought.  In old covenant sins were covered temporarily, in new covenant sins the penalty of sin was done away with permanently.  In old covenant sacrifice is truly satisfying to God while in old covenant Christ sacrifice is completely satisfying to God.  In old covenant all people who die without faith will be judged while in new covenant all who have faith will never be judged.
Blood came out from the remnants of my finger.  Jesus' blood was shed for everything we have done in our life.
Jesus death was required to activate a will to receive his inheritance (Heb 16-17).  Also, in order for spiritual forgiveness and cleansing to demand blood, (Heb 18-22).  Lastly, because judgement is imputed from the sinner of the substitute (vv. 23-28).  Jesus became our substitute for our sins.  It was necessary for God's justice.
What does this passage show us about God's will? How can we remember Jesus blood shed for us today? Does this passage/post change us? and in what ways?