For seven days no one in your land is to have any yeast in the house; and the meat of the animal killed on the evening of the first day must be eaten that same night.
The Lord said, “For seven days you must not eat any bread made with yeast—eat only unleavened bread. On the first day you are to get rid of all the yeast in your houses, for if anyone during those seven days eats bread made with yeast, he shall no longer be considered one of my people.
“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.
“Do not offer bread made with yeast when you sacrifice an animal to me. Do not keep until the following morning any part of the animal killed at the Passover Festival.
Jesus told them still another parable: “The Kingdom of heaven is like this. A woman takes some yeast and mixes it with a bushel of flour until the whole batch of dough rises.”
“Slaughter the Passover animals at the one place of worship—and nowhere else in the land that the Lord your God will give you. Do it at sunset, the time of day when you left Egypt.