'Leavened' in the Bible

[In the celebration of the Passover in future years,] seven days you shall eat unleavened bread, but on the first day you shall remove the leaven from your houses [because it represents the spread of sin]; for whoever eats leavened bread on the first day through the seventh day, that person shall be cut off and excluded from [the atonement made for] Israel.

Seven days no leaven shall be found in your houses; whoever eats what is leavened shall be cut off and excluded from [the atonement made for] the congregation of Israel, whether a stranger or native-born.

You shall eat nothing leavened; in all your dwellings you shall eat unleavened bread.’”

So the people took their dough before it was leavened, their kneading bowls being bound up in their clothes on their shoulders.

And they baked unleavened cakes of the dough which they brought from Egypt; it was not leavened, since they were driven [quickly] from Egypt and could not delay, nor had they prepared any food for themselves.

Moses said to the people, “Remember [solemnly observe and commemorate] this day on which you came out of Egypt, out of the house of bondage and slavery; for by a strong and powerful hand the Lord brought you out of this place. And nothing leavened shall be eaten.

Unleavened bread shall be eaten throughout the seven days; no leavened bread shall be seen with you, nor shall there be leaven within the borders of your territory.

“You shall not offer the blood of My sacrifice with leavened bread; and the fat of My feast is not to be left overnight until morning.

With the sacrifice of his peace offerings for thanksgiving, he shall present his offering with cakes of leavened bread.

You shall not eat leavened bread with it; instead, for seven days you shall eat the Passover with unleavened bread, the bread of affliction (for you left the land of Egypt in haste); [do this] so that all the days of your life you may remember [thoughtfully] the day when you came out of the land of Egypt.

They are all adulterers;Like the heat of an ovenWhen the baker ceases to stir the fire, [their passion smolders]From the kneading of the dough until it is leavened.

“Offer [by burning] a sacrifice of thanksgiving of that which is leavened,And [boastfully] proclaim freewill offerings, announce them.For this you so love to do, O children of Israel!”Says the Lord God.

He told them another parable, “The kingdom of heaven is like leaven, which a woman took and worked into three measures of flour until all of it was leavened.”

It is like leaven, which a woman took and hid in three peck measures of flour until it was all leavened.”