That the Marcionite redemption was from the blood of Jesus see Eznik:
And in vain was that saying of Marcion,
"We are the price of the blood of Jesus." Because that blood of his was not shed, nor were they bought, for the reason that they speak of the cross and death figuratively and not really. Even the Jews refute them, who to this day insist, "Our fathers lifted up Jesus to the cross."
https://books.google.com/books?id=3yP-K ... 22&f=false
Although Eznik stresses the differences between the Marcionite understanding and the orthodox, I am suspicious. Notice that in a near contemporary (to Eznik) Armenian saint (= Gregory the Illuminator) we hear a preservation of the Marcionite 'creed' only now in the voice of an orthodox. Gregory declares:
“ Then, because men ate and drank of that which was offered in sacrifice to their gods, therefore did Thy Son shed His Blood on the Cross. For that wood is to men instead of their carved images of wood ; and He Himself, instead of the human similitudes of impurity ; His Blood also is in place of the cup of their joyful libations of blood. For He came and redeemed us with His Blood from our hard bondage, and set us free from the servitude of the wickedness of sin, by His divine nature. For we are the price of the Blood of Thy Son ; being saved and made free by the Blood of His Body. For we are not masters of our own selves, that we should walk according to our ideas of ease and comfort, or according to the opinions of any mortal man, even though he be our lord and master after the flesh. "We must honour them only as Thou hast commanded ; for they can only torment our bodies; but Thy Son Jesus Christ has power to cast into everlasting torments both our souls and bodies, into the fire that is not quenched and the worm that dieth hot.”
Armenia was still under the influence of Marcionite ideas at the time Gregory rose to prominence and I imagine that they had pretty much the same idea about how 'the blood of Christ' or Jesus redeemed. So Augustine:
https://books.google.com/books?id=9FynY ... 22&f=false
Ambrose:
“That without God He should taste death for every man;” that is, that every creature might be redeemed without any suffering at the price of the blood of the Lord’s Divinity, as it stands elsewhere: “Every creature shall be delivered from the bondage of corruption.”
Some more clues of what the Marcionites believed regarding the redemption of blood in Eznik:
Then Jesus descended again, but this time in the form of his divinity, and accused the Lord of Creation of his death. The god was dismayed as he had not known until then that any other god existed, but Jesus said to him, "I have a case against thee and no one shall judge between us but thine own law which thou has written ... Didst thou not write in thy Law that he who kills shall die and they shall shed the blood of him who sheds blood? ... Now thou hast delivered thyself into my hands so that I may kill thee and shed thy blood as thou didst kill me and shed my blood. For I am more righteous than thou and I have done great kindness to thy creation." And he recounted all the kindnesses he had done. At this the Lord of Creation was confounded, and, pleading ignorance of the Stranger's existence, offered as amends to give Jesus all those who would believe in him to go wherever he wished. Jesus then departed and appointed Paul to proclaim the news that "we are bought with a price (1 Cor 6.20) and that all who believe in Jesus have been sold by the Righteous to the Good God."
“Finally, from so little sleeping and so much reading, his brain dried up and he went completely out of his mind.”
― Miguel de Cervantes Saavedra, Don Quixote