Faith is Not Merely Cognitive
Our trusting only in Jesus and not trusting in other things is deeper than our mental calculations. John Piper is very helpful on this point. Faith is so intertwined with the affections. Believing is treasuring and delighting in an object, both for the pleasure the object possesses and for the pleasure the object brings (and these are not so neatly divided).
Faith in the Gospel
Piper construction in God is the Gospel articulates an important point. The gospel would not be good if it were not for God. God is the gospel. Forgiveness of sins, escape from wrath, eternity in the new cosmos—all these things are good benefits that would be empty if it were not GOD himself whom we “get” in the gospel.
How Do We Think About Idolatry?
Now, how does Piper’s construction add up with the idolatry construction within the gospel-centered movement (GCM)? The idolatry construction does not make the idol and the pseudo-savior the same thing (because it never is).
If my idol were the approval of man then the savior that accomplishes that idol is something different, such as, the refusal to disagree with people (i.e., spineless compromise). I would put my faith in compromise because of the pleasure it brings in procuring man’s approval.
Saving Faith Is Different . . .
The Savior in whom I put my faith is also the God to whom I am saved. Jesus, the second Person of the Holy Trinity, is both the means and the end. I trust in Jesus for the pleasure he possesses and for the benefits he brings. The pleasure that he possesses is not different from the pleasure he brings. For what he brings is fellowship with his person all in all—the triune God.
Still thinking . . .