Only a God of love is fully personal. Thus the Trinity is crucial for maintaining a fully personal concept of God. As theologian Robert Letham writes, Only a God who is triune can be personal.... A solitary monad cannot love and, since it cannot love, neither can it be a person. Therefore it has no way to explain or even to maintain human personhood.

Finding Truth: 5 Principles for Unmasking Atheism, Secularism, and Other God Substitutes (ed. David C Cook, 2015) - ISBN: 9780781413282