The Spirit is compared to the wind, and, like the wind, He cannot be seen by our bodily eyes. But just as we know there is a wind by the effect it produces on waves, and trees, and smoke, so we may know the Spirit is in a man by the effects he produces in the man’s conduct. . . . We may depend on it as a positive certainty that where there is no holy living, there is no Holy Ghost.
– J. C. Ryle
1816 – 1900