Why was there such cleansing power in the Redeemer's blood? I answer, for several reasons. First, because of the glory of his person. Only think who he was! He was none other than the "Light of light, very God of very God." He counted it not robbery to be equal with God, yet he took upon himself our nature, and was born of a virgin. His holy soul dwelt in a perfectly pure body, and to this the Godhead was united: "For in him dwelleth all the fulness of the Godhead bodily."
Now, for this glorious, this sinless, this divine person, to die is an amazing thing. For the Lord of angels, Creator of all things, sustaining all things by the power of his word - for him, I say, to bow his head to death as a vindication of the law is an inconceivably majestic recompense to the honour of eternal justice. Never could justice be more gloriously exalted in the presence of intelligent beings than by the Lord of all submitting himself to its requirements.
There must be an infinite merit about his death: a desert unutterable, immeasurable. Methinks if there had been a million worlds to redeem, their redemption could not have needed more than this "sacrifice of himself." If the whole universe, teeming with worlds as many as the sands on the seashore, had required to be ransomed, that one giving up of the ghost might have sufficed as a full price for them all. I believe in the special design of our Lord's atoning death, but I will yield to no one in my belief in the absolutely infinite value of the offering which our Lord Jesus has presented; the glory of his person renders the idea of limitation an insult.
-Charles Spurgeon, "Slaying the Sacrifice"