Chapter 7, Mishna 3
What does it mean that the Children of Israel at Mt. Sinai “saw thunder”? Normally, we readily believe what we see and choose to believe (or not) what we hear. At Sinai, this condition was inverted. How does that relate to reciting Shema every day? Five offerings are similar to the Pesach, the paschal lamb, in that they are brought despite ritual impurity, because the Torah commands that they be brought in “their appointed times.” But unlike the Pesach, they are not eaten when brought in a state of ritual impurity.