The Wrath of God is necessary to the gospel
God's wrath is actively upon the unrighteous who suppress His truth
What is meant by the Wrath of God?
The Wrath of God is real and active (Rom 1:18a)
9 Much more then, being now justified by his blood, we shall be saved from wrath through him
God’s wrath is real, severe, and personal. The idea that God is not angry with sinners belongs neither to the OT nor to the NT. God is a personal moral being who is unalterably opposed to evil and takes personal actions against it. Wrath is the punitive righteousness of God by which He maintains His moral order, which demands justice and retribution for injustice
God is holy; he totally and completely distances himself from sin, evil, corruption, and the resultant filth and guilt. He maintains his purity and rejects, fights against, and destroys that which would offend, attack, or undo his holiness and love. Hence, God’s anger and wrath must always be seen in relation to his maintaining and defending his attributes of love and holiness, as well as his righteousness and justice. The emotion or passion that moves God to this maintaining and defending is expressed by the terms “displeasure,” “indignation,” “anger,” and “wrath.” A consequence of his wrath is vengeance, punishment, and death.