Musar zu Schemuel II 23:3

And the second is that a man is obligated to always set up frameworks of the heart to enshrine dread and fear in his heart in front of God, may He be blessed. But it is stated about the evildoers (Jeremiah 5:24), “They have not said in their hearts, ‘Let us revere the Lord, our God.’” But the man who inflicts his fear in the land of the living, not for the sake of the Heavens, does not have dread in his heart in front of God and wants to impose his [own] fear upon His creatures. And instead of his having to set up thoughts to enshrine the dread of God in his heart, he designs them to impose his own fear on the people of God, may He be blessed. And it is stated (II Samuel 23:3), “He who rules men justly, He who rules in awe of God.” The explanation [of this] is that it is fit for a righteous man who fears God to be a ruler of men. Since once he fears God, may He be blessed, it is fitting for people to fear him.