'Bread' in the Bible

So then, let us celebrate the festival, not with the old yeast, the yeast of vice and evil, but with the bread without yeast, the bread of sincerity and truth.

Is not the cup of blessing that we bless a sharing in the blood of Christ? Is not the bread that we break a sharing in the body of Christ?

Because there is one bread, we who are many are one body, for we all share 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 every time you eat this bread and drink the cup, you proclaim the Lord's death until he comes.

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

A person should examine himself first, and in this way let him eat the bread and drink of the cup.