'Bread' in the Bible

So then, let us celebrate the feast, not with the old leaven or with the leaven of wickedness and sinfulness, but with the unleavened bread of sincerity and truth.

The cup of blessing which we bless, is it not a participation in the blood of Christ? The bread which we break, is it not a participation in the body of Christ?

Because [there is] one bread, [we] who [are] many are one body, for [we] all share from the one bread.

For I received from the Lord what I also passed on to you, that the Lord Jesus, on the night in which he was betrayed, took bread,

For as often as you eat this bread and drink this cup, you proclaim the Lord's death until he comes.

So then, whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of the body and the blood of the Lord.

But let a person examine himself, and in this way let him eat from the bread and let him drink from the cup.