Shimon, the second son of Jacob and Leah and the progenitor of the Israelite tribe of Shimon, was born on Tevet 21 (according to another opinion, on Tevet 28), of the year 2194 from creation (1567 BCE), nine years after Jacob's arrival in Charan.
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On December 23 (21 Teves), 1690, strong earthquakes rattled the city of Ancona, Italy, causing numerous structures to collapse and placing its inhabitants in mortal danger. Miraculously, the Jewish quarter was spared, suffering the collapse of only one house. In commemoration of this event, the local Jewish community established that date as a day of celebration and song, while the previous day—20 Teves—would be marked yearly by fasting and charity (Or Boker, p. 48a).
If He loathes evil, then why does He allow it in His world? How can He breathe life into a world while all that is good and beautiful is ravaged by that which He hates?
It must be that His hatred of evil is not like the hatred of a mortal being for those who oppose him. Nothing can oppose Him, none of His creatures can cause Him harm. To Him, darkness is light and light is darkness, the wicked and the righteous are equal in their insignificance.
He rejects evil not for any reason, but only because He has chosen to reject these things, and that very rejection is what brings evil into being.
So too, He has chosen that those who vanquish evil will be called good. This, too, is a decision from His very essence, one that defines the very reality of things.
At the very core of reality lies the freedom of choice.