Romans 2:5
But in your stubbornness and impenitence of heart you are storing up wrath for yourself on the day of wrath, when the justice of God's judgments will be uncovered.
Romans 3:5-6
But if our wrongdoing brings to light the uprightness of God, what shall we infer? Is it wrong (I am using everyday human terms) for God to inflict punishment?
Romans 9:14
What are we then to conclude? It is not that there is injustice in God, is it? Of course not!
Revelation 15:3-4
And they were singing the song of Moses, the slave of God, and the song of the Lamb: "Great and wonderful are your works, Lord God, Almighty One; upright and true your ways, O King of the ages.
Revelation 16:7
And I heard the altar say, "Yes, Lord God Almighty! Your sentences are true and just."
Revelation 19:2
because His judgments are true and just. Because He has passed judgment on the notorious prostitute who corrupted the earth with her immorality, and for the blood of His slaves He has taken vengeance upon her!"