God’s grace is illustrated by the satisfaction of His justice in that it is done for us by the One whom He has appointed. It is God’s nature as the Judge of all the world to do what is right. And the Judge who does what is right never, ever violates the canons of His own righteousness.

In the eleventh century, one of the church’s most brilliant thinkers, Anselm, archbishop of Canterbury, wrote three important works that have influenced the church ever since. In the field of Christian philosophy, he gave us his Monologium and his Proslogium; in the field of systematic theology, he penned the great Christian classic Cur Deus Homo, which being translated means “Why the God-Man?”

In this work, Anselm set forth the philosophical and theological foundations for an important aspect of the church’s understanding of the atonement of Christ, specifically the satisfaction view of the atonement. In it, Anselm argued that it was necessary for the atonement to take place in order to satisfy the justice of God. That viewpoint became the centerpiece of classical Christian orthodoxy in the Middle Ages, in terms of the church’s understanding of the work of Christ in His atonement. Since then, however, the satisfaction view of the atonement has not been without its critics.

In the Middle Ages, questions were raised about the propriety of thinking that the atonement of Jesus was made necessary by some abstract law of the universe that required God’s justice to be satisfied. This gave rise to the so-called Ex Lex debate. In the Ex Lex debate, the question was raised as to whether God’s will functioned apart from any law or outside of any law (ex lex), or whether the will of God was itself subjected to some norm of righteousness or cosmic law that God was required to follow and, therefore, His will was exercised under law (sub lego). The question was: Is God apart from law or is He under law?

The church’s response to this dilemma was to say basically “a pox on both houses,” and to declare that God is neither apart from law nor under law in these respective senses. Rather, the church responded by affirming that God is both apart from law and under law, in so far as He is free from any restraints imposed upon Him by some law that exists outside of Himself. In that sense, He is apart from law and not under law. Yet at the same time, God is not arbitrary or capricious and works according to the law of His own nature. The church declared that God is a law unto Himself. This reflects not a spirit of lawlessness within God, but that the norm for God’s behavior and God’s will is based on what the seventeenth-century orthodox theologians called “the natural law of God.”

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