From Walter Brueggemann’s An unsettling God – the heart of the Hebrew Bible:

But of course, “God” as rendered in the Bible—and most particularly in the Christian Old Testament—does not conform to either the temptation of vagueness or the temptation of settledness. In contrast to both of these interpretive alternatives, “God” as rendered in the Old Testament is a fully articulated personal agent, with all the particularities of personhood and with a full repertoire of traits and actions that belong to a fully formed and actualized person. Such a particular person cannot settle for vagueness because the particularity has a history and an identity that remain constant over time. Such a particular person cannot accept a fixity as reflected in some forms of classical tradition, because this particular person possesses all of the dimensions of freedom and possibility that rightly belong to a personal agent.