Synopsis: Utilizing resources from Martin Luther and the Lutheran tradition, this study offers an understanding of the gospel as promise as key to addressing the challenge of relating the missio Dei to a generous, constructive approach toward the religious other. In its construction of a Lutheran missiology, it retrieves and reappropriates four resources from the Lutheran tradition: the gospel as promise, the law/gospel distinction, a theology of grace as promise of mercy fulfilled, and a theology of the cross utilizing the hiddenness of God. The law of God as accusing yet webbing humanity to...