Exodus 12:19
There shall be no leaven found in your houses for seven days. Whoever eats what is leavened shall be cut off from the congregation of Israel, whether he is an alien or a native of the land.
Exodus 12:15
You will eat unleavened bread for seven days. The first day you shall remove leaven from your houses. Whoever eats anything leavened from the first day until the seventh day will be cut off from Israel.
Exodus 12:48
The uncircumcised man may not eat it. If a foreigner has settled among you and wants to celebrate Passover to honor Jehovah, you must first circumcise all the males of his household. He is then to be treated like a native-born Israelite and may join in the festival.
Exodus 12:43
Jehovah said to Moses and Aaron: This is the ordinance of the Passover: no foreigner is to eat of it.
Exodus 23:15
In the month of Abib, the month in which you left Egypt, celebrate the Festival of Unleavened Bread in the way that I commanded you. Do not eat any bread made with yeast during the seven days of this festival. Never come to worship me without bringing an offering.
Exodus 34:18
Celebrate the Festival of Unleavened Bread. As I commanded you, you must eat unleavened bread for seven days at the appointed time in the month of Abib. This is because in that month you came out of Egypt.
Numbers 9:13
If you are clean and not on a trip and yet do not bother to celebrate the Passover, you must be excluded from the people. You did not bring your offering to Jehovah at the right time. You must suffer the consequences for your sin.
Deuteronomy 16:3
Do not eat leavened bread with it. Eat unleavened bread for seven days. It is the bread of affliction. You should remember all the days of your life the day when you came out of the land of Egypt in haste.
1 Corinthians 5:7-8
Purge out the old leaven, that you may be a new batch of dough. For even Christ our Passover has been sacrificed for us.