Who Said the Doctrine of the Trinity Is Irrelevant?

"The transcendent independence of the Trinity, as Wholly Other, allows the act of creation to be a sheer act of the Trinity's loving goodness and freedom.  Because they (the Father, Son, and Spirit) possess no self-fulfilling needs, they are motivated solely by their beneficent and altruistic love to bring others into existence and so bestow upon them their goodness" (Thomas Weinandy, Does God Suffer?, p. 143).