'Yeast' in the Bible

You must eat unleavened bread for seven days. On the first day you must remove yeast from your houses. Whoever eats what is leavened from the first day through the seventh day must be cut off from Israel.

Yeast must not be found in your houses for seven days. If anyone eats something leavened, that person, whether a foreign resident or native of the land, must be cut off from the community of Israel.

The people baked the dough they had brought out of Egypt into unleavened loaves, since it had no yeast; for when they had been driven out of Egypt they could not delay and had not prepared any provisions for themselves.

Unleavened bread is to be eaten for those seven days. Nothing leavened may be found among you, and no yeast may be found among you in all your territory.

“No grain offering that you present to the Lord is to be made with yeast, for you are not to burn any yeast or honey as a fire offering to the Lord.

It must not be baked with yeast; I have assigned it as their portion from My fire offerings. It is especially holy, like the sin offering and the restitution offering.

Moses spoke to Aaron and his remaining sons, Eleazar and Ithamar: “Take the grain offering that is left over from the fire offerings to the Lord, and eat it prepared without yeast beside the altar, because it is especially holy.

Bring two loaves of bread from your settlements as a presentation offering, each of them made from four quarts of fine flour, baked with yeast, as firstfruits to the Lord.

No yeast is to be found anywhere in your territory for seven days, and none of the meat you sacrifice in the evening of the first day is to remain until morning.

He told them another parable: “The kingdom of heaven is like yeast that a woman took and mixed into 50 pounds of flour until it spread through all of it.”

Then Jesus told them, “Watch out and beware of the yeast of the Pharisees and Sadducees.”

Why is it you don’t understand that when I told you, ‘Beware of the yeast of the Pharisees and Sadducees,’ it wasn’t about bread?”

Then they understood that He did not tell them to beware of the yeast in bread, but of the teaching of the Pharisees and Sadducees.

Then He commanded them: “Watch out! Beware of the yeast of the Pharisees and the yeast of Herod.”

In these circumstances, a crowd of many thousands came together, so that they were trampling on one another. He began to say to His disciples first: “Be on your guard against the yeast of the Pharisees, which is hypocrisy.

It’s like yeast that a woman took and mixed into 50 pounds of flour until it spread through the entire mixture.”

Your boasting is not good. Don’t you know that a little yeast permeates the whole batch of dough?

Clean out the old yeast so that you may be a new batch. You are indeed unleavened, for Christ our Passover has been sacrificed.

Therefore, let us observe the feast, not with old yeast or with the yeast of malice and evil but with the unleavened bread of sincerity and truth.

A little yeast leavens the whole lump of dough.