Ezekiel 45:21
"'In the first month, on the fourteenth day of the month, you will celebrate the Passover, and for seven days bread made without yeast will be eaten.
Leviticus 23:5-8
In the first month, on the fourteenth day of the month, at twilight, is a Passover offering to the Lord.
Exodus 12:1-51
The Lord said to Moses and Aaron in the land of Egypt,
Numbers 9:2-14
"The Israelites are to observe the Passover at its appointed time.
Numbers 28:16-25
"'On the fourteenth day of the first month is the Lord's Passover.
Deuteronomy 16:1-8
Observe the month Abib and keep the Passover to the Lord your God, for in that month he brought you out of Egypt by night.
1 Corinthians 5:7-8
Clean out the old yeast so that you may be a new batch of dough -- you are, in fact, without yeast. For Christ, our Passover lamb, has been sacrificed.