WRATH

It is clear that when we think of the word "wrath" as applicable to God, it must be divested of everything that is like human passion, and especially the passion of revenge. It is one of the most obvious rules of interpretation that we are not to apply to God passions and feelings which, among us, have their origin in evil. [God's wrath] is the opposition of the divine character against sin; and the determination of the divine mind to express that opposition in a proper way, by excluding the offender from the favors which He bestows on the righteous. We admire the character of a father who is opposed to disorder, vice, and disobedience in his family, and who expresses his opposition in a proper way. We admire the character of a ruler who is opposed to all crime in the community, and who expresses those feelings in the law. Why shall we not be equally pleased with God, who is opposed to all crime in all parts of the universe, and who determines to express His opposition in the proper way for the sake of preserving order and promoting peace? 

Albert Barnes.