The Unknowable God

Most contemporary Christians are polytheists. They believe in many gods-unawares, of course. There is a Father-god, depicted old and white-haired; there is a Son-god, middle-aged, identified with Jesus of Nazareth; and there is a Spirit-god, symbolized by a dove. Many artists have depicted this trinity, like El Greco, who painted his "The Trinity" in 1578. These three gods are believed to constitute only one divinity, but very few ordinary Christians could explain how this could be the case...