Matthew 13:33
He told them still another parable: "The kingdom of heaven is like yeast that a woman took and mixed into three measures of flour, until all of it was leavened."

Exodus 12:6
You must care for it until the fourteenth day of the month, when the whole assembly of the congregation of Israel will slaughter the animals at twilight.

Exodus 12:8
They are to eat the meat that night, roasted over the fire, along with unleavened bread and bitter herbs.

Exodus 12:10
Do not leave any of it until morning; before the morning you must burn up any part that is left over.

Exodus 23:18
You must not offer the blood of My sacrifices with anything leavened, nor may the fat of My feast remain until morning.

Exodus 34:25
Do not offer the blood of My sacrifice along with anything leavened, and do not let any of the sacrifice from the Passover Feast remain until morning.

Deuteronomy 16:5
You are not to sacrifice the Passover animal in any of the towns the LORD your God is giving you.