The law of God is essential for missions. Rather than simply a cultic and ritual code of conduct for the nation of Israel, Deuteronomy shows us the Spirit of the law, which has been made universally applicable for Gentiles through Jesus Christ who fulfills the law for us. Each of the ten commandments leads us to a need to preach these laws to all people everywhere. It is a worthy effort to consider how to apply these timeless principles to particular peoples, because Jesus hid these words in his heart, and he used them in his defense against Satan. The church now stands unified with believers of all places against the darkness of the world around us because we have the same doctrine and morality.