When we speak of divine justice we are speaking about a God who is holy and a God who is sovereign. We are speaking of a God who is transcendent in His majesty, a God who brings good things and the God who brings bad things. Job understood these things when he said, "The Lord gives and the Lord takes away, blessed be the name of the Lord". That's the God we still encounter today. The God of divine justice, holiness and wrath.
We live in a culture, and the Church as well, that if people believe in the existence of God, they do not consider God to be holy. But if they do acknowledge that He is holy, they don't add to that holiness the idea of divine justice. And if we are able to find a handful of people who agree that God is both holy and just, it is next to impossible to find someone who will add to these elements the idea that God is also a God of wrath. The assumption in the world and in the Church today is that the love of God, the mercy of God, and the grace of God, either swallow up the justice and wrath of God, or certainly trump it. It is commonplace to hear people sing Amazing Grace, but no one believes that grace is amazing. It's something that we assume. Because again the assumption is God is not holy, God is not just, and God is not a God of wrath.
What is your understanding of divine justice, which includes the thought, that along with the mercy and grace of God, the justice and wrath of God? The holiness of God may surprise us in that His Holiness includes a reverence for justice and His wrath as well as mercy and His amazing grace.