Classical arguments for God's existence, like ontological, cosmological, teleological, etc., only derive the existence of something very abstract, greatest entity, first cause, etc., which is then "magically" identified with some familiar God (Christian, Islamic, etc.). But these specific Gods are described acting as persons, not just some abstractions, in Christianity we even have one God in three Divine Persons, including "father" and "son". English Oxford Dictionary defines "personality" as "the quality or fact of being a person as distinct from a thing or animal", and it seems that the idea of personal God is integral to the classical theology.
So what are, if any, arguments for the existence of God with a personality? Where does the idea of 'personality' fit into the cosmological argument, for example?