Exodus 23:18 Do not offer bread made with yeast when you sacrifice an animal to me. The fat of animals sacrificed to me during these festivals is not to be left until the following morning. 1 Corinthians 5:8 ‘Let us celebrate our Passover, then, not with bread having the old yeast of sin and wickedness, but with the bread that has no yeast, the bread of purity and truth’. Let’s celebrate our God in purity. Cleanliness is what he wants of us. Let us long for holiness.