Why does the Old Testament reveal a God of wrath, while the New Testament reveals a God of love? The Old Testament has as much to say as the New Testament about the love, goodness, mercy, compassion, and forgiveness of God. The New Testament has as much to say as the Old Testament about the wrath of God. In the Old Testament God is Judging the nations, protecting Israel, and building a nation to reach the nations. In both the Old Testament and in the New Testament God's purpose and character is unchanging.