Musar zu Amos 5:10

The worst af all kinds of hatred, the one most difficult to eradicate is that which people feel towards those who rebuke or correct them in order to teach them the righteous path, as in the case of which Amos speaks: "They hate him that reproves them in the gate" (Amos 5:10). And there is a hatred more evil than this; namely, when people hate those who do good and pursue justice, as it is said: "They oppose me viciously because I follow the thing that is good" (Ps. 38:21). And those who follow this path hate the Lord Himself for they hate those that He loves and they hate the Torah and Commandments since they abhor, reject and hate those who fulfill its commands.