John 6:53-55

New Revised Standard Version, Anglicised Catholic Edition

⁵³ So Jesus said to them, ‘Very truly, I tell you, unless you eat the flesh of the Son of Man and drink his blood, you have no life in you. ⁵⁴ Those who eat my flesh and drink my blood have eternal life, and I will raise them up on the last day; ⁵⁵ for my flesh is true food and my blood is true drink.