Surveys estimate that around 8-percent of contemporary Christian sermons derive their origin from texts in the Old Testament. A good thought from the late OT scholar Gleason Archer:
“How can Christian pastors hope to feed their flock on a well-balanced spiritual diet if they completely neglect the 39 books of Holy Scripture on which Christ and all the New Testament authors received their own spiritual nourishment?”
– G. L. Archer, “A New Look at the Old Testament,” Decision, August 1972, page 5.
Things that make you go hmm.
Full disclosure: I receive a nice diet of O.T. preaching. The Rolling Stones title was too good to pass up.