"On the first day, you shall remove leaven from your houses"—Exodus 12:15.
We are commanded to eliminate all chametz (leavened foods) from our possession on the fourteenth of Nissan, the eve of Passover.
"No leavened bread shall be eaten"—Exodus 13:3.
It is forbidden to consume chametz (leavened foods) for the duration of Passover.
"You shall eat nothing leavened"—Exodus 12:20.
We are forbidden to consume on Passover foods or beverages that contain any chametz (leavened) ingredients, such as beer.