Luke 22:1
AND the feast of unleavened bread approached, called the passover.
Luke 22:7
And the day of unleavened bread came, in which it was necessary to kill the paschal lamb.
Acts 2:46
and continuing day by day with one accord in the temple, and breaking bread from house to house, they partook of food with gladness and simplicity of mind,
1 Corinthians 5:7-8
Remove the old leaven, that you may be a new mass, as you are unleavened; for Christ our passover was also sacrificed for us.
Philippians 4:4
Rejoice in the Lord always; again I say, rejoice.