Exodus 13:6-8

New International Version

⁶ For seven days eat bread made without yeast and on the seventh day hold a festival^(A) to the Lord. ⁷ Eat unleavened bread during those seven days; nothing with yeast in it is to be seen among you, nor shall any yeast be seen anywhere within your borders. ⁸ On that day tell your son,^(B) ‘I do this because of what the Lord did for me when I came out of Egypt.’