At the end of parashat Emor it is written:
וַיְדַבֵּר מֹשֶׁה, אֶל-בְּנֵי יִשְׂרָאֵל, וַיּוֹצִיאוּ אֶת-הַמְקַלֵּל אֶל-מִחוּץ לַמַּחֲנֶה, וַיִּרְגְּמוּ אֹתוֹ אָבֶן; וּבְנֵי-יִשְׂרָאֵל עָשׂוּ, כַּאֲשֶׁר צִוָּה יְהוָה אֶת-מֹשֶׁה.
And Moses told [all this] to the children of Israel. So they took the blasphemer outside the camp and stoned him, and the children of Israel did just as the Lord had commanded Moses
.
The last {and the children of Israel did just as the Lord had commanded Moses} part seems strange. To explain it, the Ramban says that
ועשו כן כל בני ישראל לשמור ולעשות כאשר ציווה השם את משה, ולא לשנאת בן המצרי שנצה עם הישראלי אלא לבער הפגום מתוכם
They didn't do it because of hate, but to fulfil the Mitzvah. I wonder, isn't this kind of hate permissible, or even desirable, as it leads to productive actions and restraining from evil doings?
Behold it is written in (משלי ח, יג)
ראת ה' שנאות רע, גאה וגאון ודרך רע ופי תהפוכות שנאתי
Fear of the Lord is to hate evil, haughtiness, pride, the way of evil, and a perverse mouth; [these] I hate.
The gemara pesachim 113b says that indeed the pasuk is about hating the sinner.
If you think this hate is not good, I want to know why.
