The Acts of the Apostles reveals a God at work. However, what do God’s actions reveal about God’s character? This question drives the present study, whose ultimate goal is to discover what portrayal Acts constructs of God through God’s actions. Aarflot demonstrates how Jesus’s ascension and the development of the gentile mission prove key to Acts’ distinctive portrayal of God. The study explores what happens to the characterization of God when Jesus’s character comes to resemble God through the ascension, noting in particular the effect of ambiguous language that might refer to either God or Jesus on the portrayal of God. It also considers how Acts depicts God through actions in Israel’s past in relation to the narrative present. This is done by looking at how God is characterized at decisive moments of Acts’ plot. The resulting observations are ultimately synthesized in a final chapter presenting the portrayal of God in Acts. The results of the study have implications for the discussion of the impact of Christology on theology, and furthers the discussion of “God” in the New Testament by delineating a constant, yet developing image of God, and solidifies previous research’s observations on the centrality of God’s actions to Acts’ narrative.