PESACH / TZAV
4 Cups of Wine, 3 Matzot. It's Meaning & Message.
The structure of the Seder raises an intriguing question: why does the Seder revolve around the number four, while the most important element — the matzah — specifically comes in a set of three?
Four cups of wine… Four different verses command the telling of the Haggadah and teach that the explanation should be directed toward four types of children. Preceding the section of the four sons are four blessings, the child asks THE four questions, and we eat four portions of matzah as a halachic requirement.