  Still, it is surprising that Western theists have held DDI. For Western Scriptures seem to conflict with DDI. Some Scriptural texts depict human sin as making God sadder than he was (e.g., Gen.  6:6), then bringing God to new decisions, e.g., to flood the world. According to John, “the Word became flesh” (1:14), i.e., God took on a human nature he did not always have. So Western theism's Scriptural roots seem to deny DDI. Yet by the first century C.E., DDI was central to the main theory of God's nature, “classical theism.” In such “classical theist” writers as Augustine and Aquinas, being immutable makes God atemporally eternal (see e.g. Aquinas, ST Ia 9–10), and eternality is God's distinctive mode of being. So DDI is at the roots of such writers' understandings of God's nature. And though Scotus and Ockham led a revolt against divine atemporality, they and their followers maintained DDI, and it ruled the theological roost till the 19th century. So one wonders: what made DDI so attractive for so long?