1 Corinthians 12:7 - Ellicott's Commentary On The Whole Bible

But the manifestation of the Spirit. — These gifts which flow from one source are intended to flow towards one object, viz., the benefit of the whole Church. If it were only for a man’s own benefit it would cease to be a “manifestation” — it would be sufficient for the person to possess the spirit consciously to himself. But the object of light is to give light to others. The object of the spiritual light is to make manifest to others.