Question:
At the passover, they were to eat only unleavened bread. Why then, do we use leavened bread in Remembrance meeting? Isn’t that a type of the passover supper?

Answer:
God’s people today are not under the law: “For the law was given by Moses, but grace and truth came by Jesus Christ” (John 1:17); “For ye are not under the law, but under grace” (Romans 6:14). It was the law that commanded the godly Israelite to refrain from using leaven, but we have no such command today.

The Passover feast (Exodus 12:14) does remind us of the Lord’s Supper, for just as the Israelites came together to remember their deliverance from judgment by the blood of the lamb, so we too eat the Lord’s supper to meditate on our deliverance from eternal judgment by the blood of the Lamb. But I believe the type ends there. We don’t kill a literal lamb and eat it, like they did, and we don’t eat bitter herbs either (Exodus 12:8). The Lord chose to only use bread and wine because they would symbolize His body and blood. So the important thing is that we do use some kind of bread. The Lord did not specify unleavened or leavened bread, for it is Christ Himself that is typified in the bread which we break (see 1 Corinthians 10:16; 11:23, 24).