Throughout Scripture, blood is equated with life, and God provides specific instructions regarding its handling. In Genesis 9:4, God commands Noah not to eat flesh with its life, that is, its blood. This principle is reinforced in Leviticus 17:10-14, where God declares that anyone from the house of Israel or strangers among them who eats blood will face His judgment and be cut off from their people. God emphasizes that the life of the flesh is in the blood, and He has given it for atonement upon the altar. Therefore, no one is to eat blood, and even hunters must pour out the blood of their prey and cover it with dust, for the life of all flesh is its blood. God reiterates that consuming blood is a grave offense, underscoring the sacredness of life contained within it.

The Scriptures emphasize the sacredness of blood, equating it with life itself. God instilled in Israel strict laws concerning the consumption of blood, forbidding the eating of blood with the flesh of animals. In John 6, Jesus challenges His followers with a profound teaching, declaring that if they desire eternal life, they must eat His flesh and drink His blood. This statement shocked many of His disciples, who could not grasp the metaphorical nature of His words and turned away. Jesus does not express distress over their departure, simply asking the Twelve if they also wish to leave. The passage underscores the gravity of partaking in the symbolic body and blood of our Savior, Jesus Christ, as a significant act before God. Furthermore, it reveals that not all are drawn to Christ at this time, for only those specifically called by the Father are currently under His blood, highlighting the privilege of being among the elect.