What is the definition of "Keri"?
Rashi (citing Toras Kohanim): It means haphazardly (on and off).
Rashi (citing Menachem ben S'ruk and Targum Onkelos): It means to refrain
from performing the Mitzvos.
Rashi, explaining Targum Onkelos: To harden their hearts to rebel against Hashem.
How can the Torah state "Sheva k'Chatoseichem"? Only six punishments are listed!
Rashi (on Pasuk 22): "V'Shiklah Eschem" incorporates both the teeth of wild beasts and of domesticated animals.
Rashi: Based on the Pasuk in Devarim (32:24) v'Shen Beheimos Ashalach bam" (See also Sifsei Chachamim).