Interesting explanation.

I love the way this is explained from a logical and legal perspective.  That a testament is no good until there is a death which is why Jesus had to die.  And then why there had to be blood involved.  Interesting stuff!

Hebrews 9:16-22(NKJV)

For where there is a testament, there must also of necessity be the death of the testator. 

For a testament is in force after men are dead, since it has no power at all while the testator lives. 

Therefore not even the first covenant was 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 goats, with water, scarlet wool, and hyssop, and sprinkled both the book itself and all the people, 

saying, “This is the blood of the covenant which God has commanded you.”  

Then likewise he sprinkled with blood both the tabernacle and all the vessels of the ministry. 

And according to the law almost all things are purified with blood, and without shedding of blood there is no remission.