1pe 1:19 But with the precious blood of Christ, as of a lamb without blemish and without spot:
To be without spot or blemish to me would be perfect and a need to be different than ours as human blood could not was or take away human sin. So what would be the difference between Jesus's blood and our blood? Only one thing I can think of, the presence of sin.
Is it possible that sin itself is transferred through the blood and thus the reason for the need of sinless blood to be shed. Below are some scriptures to ponder.....
Life is in the blood, the same is death is in the blood.
Le 17:14 For it is the life of all flesh; the blood of it is for the life thereof:
We are bound to Adam by blood the common denominator
Ac 17:26 And hath made of one blood all nations of men for to dwell on all the face of the earth, and hath determined the times before appointed, and the bounds of their habitation;
We all are subject to death by sin which is passed unto all men
Ro 5:12 Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned:
So Jesus must have had no presence of sin in his blood as of course no death was found in him and he could not die unlike us but only voluntarily.