“One suspects that the nicety of this theological distinction [i.e. the various possible reasons behind experiences of God’s anger in our lives] might be lost on the psalmist–swimming in a bath of tears, dissolving in a bed of weeping. When one is suffering, it is usually not the time to deploy such theological distinctions, as one hopes Job’s comrades learned.
But such distinctions do matter for the life of faith in the long run. The concept of the anger of God is the necessary corollary to the love of God. Without God’s anger, God’s love is reduced to sloppy sentimentalism. To be sure, God loves us. But because God also loves our neighbors, when our actions result in the suffering and death of our neighbors, God’s love becomes indivisible from God’s anger. But God’s anger is in service of God’s love. God’s anger is not a permanent state, but one that arises from time to time when human violence against other creatures whom also God loves sparks God’s anger. God’s wrath is neither random nor inexplicable. It arises for specific reasons, which the prophets, in particular, spell out. And God’s wrath is certainly instrumental. That is, God is angry for the sake of the relationship God shares with the world and for the sake of the wellness of God’s creation.” (Nancy deClaisse-Walford, Rolf A. Jacobson and Beth LaNeel Tanner, The Book of Psalms, NICOT, pp. 107-08 on Psalm 6)