'Yeast' in the Bible

You will eat unleavened bread for seven days. Surely on the first day you shall remove yeast from your houses, because anyone [who] eats [food with] yeast from the first day until the seventh day--that person will be cut off from Israel.

For seven days yeast must not be found in your houses, because {anyone eating food with yeast} will be cut off from the community of Israel--[whether] an alien or a native of the land.

You will eat no [food with] yeast; in all of your dwellings you will eat unleavened bread."

And the people lifted up their dough before it had yeast; their kneading troughs [were] wrapped up in their cloaks on their shoulder.

And they baked the dough that they had brought out from Egypt [as] cakes, unleavened bread, because it had no yeast when they were driven out from Egypt, and they were not able to delay, and also they had not made provisions for themselves.

And Moses said to the people, "Remember this day when you went out from Egypt, from a house of slaves, because with strength of hand Yahweh brought you out from here, and [food with] yeast will not be eaten.

Unleavened bread will be eaten the seven days; [food with] yeast will not be seen for you; and yeast will not be seen for you in all your territory.

" 'You will not sacrifice the blood of my sacrifice together with [food with] yeast, and you will not leave the fat of my feast overnight until morning.

"You will not slaughter the blood of my sacrifice on [food with] yeast, and the sacrifice of the Feast of the Passover will not stay overnight to the morning.