Faith Active in Love is a perspective on Michael Welker's theology - a Biblisch-realistische Theologie from a perspective of the Spirit. Van der Westhuizen argues that it is a multisystemic theology that in multiple tensions and triplexes - held together by the resurrection and resonance, the pouring out and structured pluralism, the reign and emergence - in complex ways cultivates a hermeneutic for faith active in love, a hermeneutic for public theology.