Romans 2:5
But by your hardness and your impenitent heart you are storing up wrath for yourself on the day of wrath when God's righteous judgment will be revealed.
Romans 3:5-6
But if our unrighteousness serves to show the righteousness of God, what shall we say? That God is unjust to inflict wrath on us? (I speak in a human way.)
Romans 9:14
What shall we say then? Is there injustice with God? Certainly not!
Revelation 15:3-4
and they sang the song of Moses, the servant of God, and the song of the Lamb, saying, "Great and marvelous are your deeds, O Lord God the Almighty! Just and true are your ways, O King of the ages!
Revelation 16:7
And I heard the altar saying, "Yes, O Lord God, the Almighty, true and just are your judgments."
Revelation 19:2
for his judgments are true and just; he has judged the great harlot who corrupted the earth with her fornication, and he has avenged on her the blood of his servants."