While they were eating, he took bread, said the blessing, broke it, gave it to them, and said, “Take it; this is my body.” Then he took a cup, gave thanks, and gave it to them, and they all drank from it. Mark 14:22–24
As a result of this, many of his disciples returned to their former way of life and no longer walked with him. Jesus then said to the Twelve, “Do you also want to leave?” John 6:66–67
“Amen, amen, I say to you, unless you eat the Flesh of the Son of Man and drink his Blood, you do not have life within you. Whoever eats my Flesh and drinks my Blood has eternal life, and I will raise him on the last day. John 6:53–55