Luther's; I could not come up with something like that. I wanted to find the quote for you, but had no success on Google. It was from an audio tape series by Michael Horton.
If you find it, please let me know.
It summarizes long posts that I've made here and in the past in just a few short words.
Michael Horton is my second favorite teacher, right behind RC Sproul. I can't wait for Sundays just to hear the new White Horse Inn.
I've decided I need to read his book "Putting the Amazing Back Into Grace" once a year. It is a wonderful read. If more Christians read this wonderful book American Christianity would escape from the post-Finney era we live in.