John Trapp on Nehemiah 5:6

Verſe 6. And I was very angry] Red-hot with anger, and not without cauſe. To be angry without cauſe, is to be guilty of judgement, Matth. 5. but in caſe of Gods diſhonour, and publike prejudice, moderation is mopiſhneſſe, toleration, cowardiſe, &c. Nehemiah was a Magiſtrate, that is, a Mortal God: as God is an Immortal Magiſtrate. Therefore as God is angry at the oppreſſions of poor people (Lactantius hath written a book De ira Dei) ſo ſhould his Lieutenants: And this holy anger ſhould be cos fortitudinis, a means to encourage, or rather to enrage them againſt Oppreſſours, who grind the faces of the poor, and take from them burdens of Wheat, Amos 5.11. Yea, lands and vineyards, as here, eating bread baked with the tears of men, coyning their money on their skins, and wringing their ſpunges into their own purſes.

When I heard their cry] His anger then was mixed with grief, as was our Saviours, Mar. 3.5. it was pure zeal, which is nothing elſe but an extreme (but regular) heat of all the affections.