When we encounter the world of ideas for the first time, we easily get overwhelmed. Scripture is telling us, 'Don't be distracted by the details. Cut to the core by asking, What is its idol?' Whatever functions as its God substitute will shape everything else.

To adapt a phrase, idols have consequences.

No matter how much you like your local school teacher, he or she is a government agent.

An idol is not necessarily something concrete, like a golden calf. It can also be something abstract, like matter. Is matter part of the created order? Sure it is. So the philosophy of materialism qualifies as an idol in the biblical sense.

When the only form of cultural commentary Christians offer is moral condemnation, no wonder we come across to non-believers as angry and scolding.

Modern secular thought has its own dualism: It treats only the physical world as knowable and testable, while locking everything else - mind, spirit, morality, meaning - into the realm of private, subjective feelings. The so-called fact/value split.

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.