IV Maccabees 2:17

17 Thus Moses, when angered against Dathan and Abiram, did nothing to them in wrath, but regulated his anger by reasoning.

IV Maccabees 2:17 In-Context

15 And reason appears to be master of the more violent passions, as love of empire and empty boasting, and slander.
16 For the temperate understanding repels all these malignant passions, as it does wrath: for it masters even this.
17 Thus Moses, when angered against Dathan and Abiram, did nothing to them in wrath, but regulated his anger by reasoning.
18 For the temperate mind is able, as I said, to be superior to the passions, and to transfer some, and destroy others.
19 For why, else, does our most wise father Jacob blame Simeon and Levi for having irrationally slain the whole race of the Shechemites, saying, Cursed be their anger.

The Brenton translation of the Septuagint is in the public domain.