Some people find it hard to reconcile the concept of God's wrath with what they perceive to be the character of God. In other words, if God loves us, how can He judge us? For many, God's wrath is inconsistent with His loving, kind, and merciful character. They cannot reconcile those two concepts. It's either one or the other. It cannot be both. Thus, they stumble. But God's wrath is not contrary to His character.