The Trinity is eternal. If the one God in three Persons did not always exist then God was not always perfect and is not unchangeable. Neither proposition is in line with Christian orthodoxy. In the Nicene Creed, we do say that the Son is “eternally-begotten” of the Father and the Holy Spirit “proceeds” from the Father and the Son. But this is an *eternal *begetting and an eternal procession and does not mean that one Person of the Trinity existed before the others or created the others – remember, the Creed also affirms that the Son is “begotten, not made.”
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