For seven days, there shall not be found leaven in your houses. Whoever will eat leaven, his soul will perish from the assembly of Israel, as much with the newcomers as with the natives of the land.
You shall not immolate the blood of my victim over leaven; and there shall not remain, in the morning, any of the victim of the Solemnity of the Passover.
He spoke another parable to them: "The kingdom of heaven is like leaven, which a woman took and hid in three measures of fine wheat flour, until it was entirely leavened."