Matt. 26:26-29 – Bread is body and wine is blood.
Jn. 6:32-63 – You must eat flesh and drink blood, or there is no life in you.
1 Cor. 10:16-17 – The bread and wine is the communion of body and blood.
1 Cor. 11:23-30 – He who eats and drinks unworthily eats and drinks damnation to himself.