The text that would have appeared in Leviticus 19:26 and Acts 21:25 has not been cited, the first because in chapter 19 of the book of Leviticus there is a simple enumeration of what not to do, the second is a mention of the decision of the Apostolic Council, both quotations must be understood in the context of the above passages from the Bible.

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So, what is the main conclusion that can be drawn from these (and not only these) quotations from the Bible?

God, as the true Life-giver, demands that man respect all life, the life of man, the life of an animal. A person must remember that only God can give life to any living being. In the Bible, blood is a symbol of life. God forbids the killing of a person, only He can give a person life or take a person's life. God forbids the unreasonable killing of animals. The killing of an animal was permitted if a person wanted to offer a sacrifice,77 if the animal's life was in danger, and if a person wanted to eat the flesh of the animal. In the first and third cases, quite clear explanations are given as to how to deal with blood. In the first case, blood was used in the process of sacrifice. In the third case, blood was poured onto the ground.

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It is not clear where the ban on blood storage comes from, the ban even on short-term storage. The words "pour it on the ground like water" cannot be considered a prohibition of storage. There is nothing to prevent the blood from first being poured from the animal killed for the purpose of feeding itself into some vessel, and then poured out somewhere in a suitable place on the ground, the main thing is that the blood is poured out, so that it is not misused. At the time of the sacrifice, it is clearly seen that the fused blood was kept for some time (Leviticus 9:8-9,18):

8 And Aaron came to the altar, and slew the calf which was for him for a sin offering, saying,

9 Aaron's sons offered him blood, and he dipped his finger in the blood, and put it on the horns of the altar, and poured out the rest of the blood at the foot of the altar...

18 And he slew the ox and the ram, which were of the people, for a peace offering; And Aaron's sons offered him blood, and he sprinkled it on the altar round about

Then, for example, you can reread the entire 16th chapter of the book of Leviticus and so on. As you can see from what you have read, there is a discreteness of operations, that is, there is storage for some time. Aaron slaughtered the calf, and his sons drained the blood and offered it to him.

Since the issue of blood storage has lost its relevance, therefore, the principle prohibiting the preservation of spilled blood from the body, and the principle of continuity of extracorporeal circulation lose their relevance.

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The most important thing to note. All that has been quoted above refers to the blood of an animal that has been killed for the purpose of sacrifice or consumption.

Can the above be extended to human blood? First, the murder of a man by a man is in itself a sin. Secondly, if the above rules are extended to man, then it is necessary to assume that the man was killed for sacrifice or for food. The first is unequivocally an idolatrous sacrifice in the most grievous form and is an abomination in the eyes of God. The second is cannibalism, an obvious sinful act that is not even worth discussing, otherwise than a clouding of the mind.