If we say that he is omnipotent, that his sovereignty is complete, that all events that occur are willed by him; then it follows that he is responsible for the actual world, which is partly evil, and, accordingly, that he is not perfectly good.
Plato's God was not an omnipotent Creator but a Demiurge struggling to control recalcitrant "stuff" or "matter".
[1] Philosopher Edgar S. Brightman (1884–1953) defended theistic finitism in his book A Philosophy of Religion, published in 1940.
Brightman stated that theistic finitism began with Plato and he traced the idea through history to Marcion, Mani and Manichaeism, Pierre Bayle, John Stuart Mill, H. G. Wells and others.
[20] Albert C. Knudson stated that John Stuart Mill was the first modern writer to advocate a finite God.
[21] Rufus Burrow, Jr. a professor of Christian thought, has argued (2012) that Brightman was different from most other finitists as he held the view that God remains infinite in many ways.
[23][24] Other advocates of theistic finitism were Hartley Burr Alexander, John Elof Boodin, Dewitt H. Parker, William Pepperell Montague and W. T.
[24][25] Conservative rabbi Harold Kushner defended theistic finitism in his book When Bad Things Happen to Good People, published in 1981.