Psalms 139:7 - Ellicott's Commentary On The Whole Bible

Spirit. — If this clause stood alone we should naturally understand by God’s Spirit His creative and providential power, from which nothing can escape (comp. Psalms 104:30). But taken in parallelism with presence in the next clause the expression leads on to a thought towards which the theology of the Old Testament was dimly feeling, which it nearly reached in the Book of Wisdom. “The Spirit of the Lord filleth the world,” but which found its perfect expression in our Saviour’s announcement to the woman of Samaria.