Far too often it is assumed that people who talk a lot about the Holy Spirit are tone-deaf to matters of social justice and social action. In this wonderful new book, Gary Tyra shows that a robust doctrine of the Holy Spirit leads not to a crass and self-serving prosperity gospel but to prophetic speech and action, which is to say, to missional faithfulness to the one who gave up all power and glory and took the form of a servant in our midst. For the growing number of Pentecostal and charismatic-oriented Christians who are often the victims of stereotypes in the mainline denominations that they call home, this is must reading.