The Guide for the Perplexed
In "The Guide for the Perplexed" Book III, Chapter 28, Maimonides draws a distinction between "true beliefs," which were beliefs about God that produced intellectual perfection, and "necessary beliefs," which were conducive to improving social order. Maimonides places anthropomorphic personification statements about God in the latter class. He uses as an example the notion that God becomes "angry" with people who do wrong. In the view of Maimonides (taken from Avicenna), God does not become angry with people, as God has no human passions; but it is important for them to believe God does, so that they desist from doing wrong.