Greetings Knowledge,

"...the blood of Jesus Christ..."

Why SelassieI said it or what it means doctrinally?
Should i post a warning..."this response might cause some brain fever"...or "qwerty may be over stimulated"?

Seriously, I will now have to make an open declaration of faith and how you receive or respond is not up to me nor is it on my head.
And, yes I am being defensive.

Despite his lofty beginnings, mankind (human beings) who were created after the image of heaven ,that is spiritual as you say,and through continued disobedience, against spiritual laws and natural laws,we have degenerated into a state of depravity.

I don't need to make a list here of what is occurring this very second in any part of the world to verify that do I?
Of course there are still many of us just by seeking knowledge and the truth can crawl gingerly out of the mire. At the least we do not participate in any lawfulness and try to help our fellow human beings.

This state of total depravity, of lawlessness, is now irreversible without the intervention of the divine, the spritual, from its highest places.
This is difficult for us born of the physical, the natural in the flesh to comprehend as how the world at large has strayed so far from our beginnings. i am sure there will be some discussion on this point! Just the movement of small family groups, initially populating the earth has insured that wouldn't you think? Different for us in this age as we have nannosecond cyberspace communication?

So the incarnation of Jesus of nazareth in bethlehem is said to be the ssumption of a human nature the physical by a dinene deing, aspiritual being who existed in the celestial sphere which is what we call heaven.
Heaven is that sphere which is secured in moral power by the Creator in the Creation, that is, ultimate and absolute power.

Because of the depraved nature of mankind the incarnation of jesus of Nazareth in the flesh,as a man,was born of woman as a man to make ATONEMENT for the sins/disobedience of the many in his own body on the "tree".
A quote:

Christ's death, the shedding of his blood, was a propitiary sacrifice dealing with the question of sin/disobedience; as regards the honour of God's/Jah/Yah throne exhausting the judgement due,and opening the gates of heaven, so that hte whole world is held provisionally in reconciliation."

Atonement; vicarious-acting or suffering for another; delegated; substituted; done or suffered for another.

as for its correlation to the old testament practices of sacrifice etc i am sure you can google that yourself

bless, judah