'Leaven' in the Bible

For seven days let your food be unleavened bread; from the first day no leaven is to be seen in your houses: whoever takes bread with leaven in it, from the first till the seventh day, will be cut off from Israel.

For seven days no leaven is to be seen in your houses: for whoever takes bread which is leavened will be cut off from the people of Israel, if he is from another country or if he is an Israelite by birth.

Take nothing which has leaven in it; wherever you are living let your food be unleavened cakes.

Unleavened cakes are to be your food through all the seven days; let no leavened bread be seen among you, or any leaven, in any part of your land.

You are to keep the feast of unleavened bread; for seven days let your bread be without leaven, as I gave you orders, at the regular time in the month Abib (for in it you came out of Egypt); and let no one come before me without an offering:

Keep the feast of unleavened bread; for seven days your food is to be bread without leaven, as I gave you orders, at the regular time in the month Abib; for in that month you came out of Egypt.

No leaven is to be offered with the blood of my offering, and the offering of the Passover feast may not be kept till the morning.

No meal offering which you give to the Lord is to be made with leaven; no leaven or honey is to be burned as an offering made by fire to the Lord.

And whatever is over Aaron and his sons may have for their food, taking it without leaven in a holy place; in the open space of the Tent of meeting they may take a meal of it.

It is not to be cooked with leaven. I have given it to them as their part of the offerings made by fire to me; it is most holy, as are the sin-offerings and the offerings for error.

And Moses said to Aaron and to Eleazar and Ithamar, his sons who were still living, Take the rest of the meal offering from the offerings of the Lord made by fire, and take it for your food, without leaven, at the side of the altar, for it is most holy.

Take from your houses two cakes of bread, made of a fifth part of an ephah of the best meal, cooked with leaven, to be waved for first-fruits to the Lord.

For seven days let no leaven be used through all your land; and nothing of the flesh which is put to death in the evening of the first day is to be kept through the night till morning.

Another story he gave to them: The kingdom of heaven is like leaven, which a woman took, and put in three measures of meal, till it was all leavened.

And Jesus said to them, Take care to have nothing to do with the leaven of the Pharisees and Sadducees.

How is it that you do not see that I was not talking to you about bread, but about keeping away from the leaven of the Pharisees and Sadducees?

Then they saw that it was not the leaven of bread which he had in mind, but the teaching of the Pharisees and Sadducees.

And he said to them, Take care to be on the watch against the leaven of the Pharisees and the leaven of Herod.

At that time, when thousands of the people had come together, in such numbers that they were crushing one another, he said first to his disciples, Have nothing to do with the leaven of the Pharisees, which is deceit.

It is like leaven, which a woman put into three measures of meal, and it was all leavened.

This pride of yours is not good. Do you not see that a little leaven makes a change in all the mass?

Take away, then, the old leaven, so that you may be a new mass, even as you are without leaven. For Christ has been put to death as our Passover.

Let us then keep the feast, not with old leaven, and not with the leaven of evil thoughts and acts, but with the unleavened bread of true thoughts and right feelings.

A little leaven makes a change in all the mass.