“Knowledge of the Holy” By A.W. Tozer (excerpt page 61).
Justice, when used of God, is a name we give to the way God is, nothing more; and when God acts justly He is not doing so to conform to an independent criterion, but simply acting like Himself in a given situation. As gold is an element in itself and can never change nor compromise but is gold wherever it is found, so God is God, always, only, fully God, and can never be other than He is. Everything in the universe is good to the degree it conforms to the nature of God and evil as it fails to do so. God is His own self-existent principle of moral equity, and when He sentences evil men or rewards the righteous, He simply acts like Himself from within, uninfluenced by anything that is not Himself.
All this seems, but only seems, to destroy the hope of justification for the returning sinner. The Christian philosopher and saint, Anselm, Archbishop of Canterbury, sought a solution to the apparent contradiction between the justice and the mercy of God. “How dost Thou spare the wicked,” he inquired of God, “if Thou art all just and supremely just?” Then he looked straight at God for the answer, for he knew that it lies in what God is.
Anselm’s findings may be paraphrased this way: God’s being is unitary; it is not composed of a number of parts working harmoniously, but simply one. There is nothing in His justice which forbids the exercise of His mercy. To think of God as we sometimes think of a court where a kindly judge, compelled by law sentences a man to death with tears and apologies, is to think in a manner wholly unworthy of the true God.
God is never at cross-purposes with Himself. No attribute of God is in conflict with another. God’s compassion flows out of His goodness, and goodness without justice is not goodness. God spares us because He is good, but He could not be good if He were not just. When God punishes the wicked, Anselm concludes, it is just because it is consistent with their deserts; and when He spares the wicked it is just because it is compatible with His goodness; so God does what becomes Him as the supremely good God. This is reason seeking to understand, not that it may believe but because it already believes.