These days the word "religion" often has a bad connotation. Christians (including myself) often emphasize that they have a "relationship" with Jesus, not that they are "religious."
But this doesn't seem to be the case if we look back a little ways in church history. John Calvin wrote The Institutes of the Christian Religion, for example, in the 16th century. More recently than that, J. Gresham Machen wrote The Origin of Paul's Religion (1921). These positive references to the word seem to be in line with James 1:27, which says:
Religion that is pure and undefiled before God the Father is this: to visit orphans and widows in their affliction, and to keep oneself unstained from the world. (ESV)
But somewhere along the way, the word "religion" started getting compared negatively to a "relationship." So here's my question: who was the first Christian theologian to place the words "religion" and "relationship" in sharp contrast, with a negative connotation for "religion"?
Note that I'm not interested in those who criticize "false religion" or "impure religion" or "mere religion" or the like – just those who treat "religion," unmodified, as negative and in sharp contrast to "relationship."
I've heard it claimed that it was Billy Graham, which seems plausible, but I'd love to see a published source indicating that he or someone else was the originator of this now-popular dichotomy.