1)
What do we learn from "Tikaseh Sin'ah b'Masa'on Tigaleh Ra'aso v'Kahal"?
1.
Sotah 9a: A Sotah acted covertly, therefore Hashem publicized about her, Midah k'Neged Midah.
2.
Rashi: One who does his deeds in darkness and covers with b'Masa'on (darkness) what Hashem hates, Hashem will reveal his evil to the congregation. They will recognize that he is a Rasha.
3.
Malbim: Matters that hatred covers them with darkness (he covers in the heart what he wants to do amidst his hatred), afterwards his evil will be revealed in the congregation.
