The deeper meaning of the passage is that sanctification is the work of God Himself. The literal translation of this phrase would be the God of peace Himself sanctify you wholly. It expresses in the most emphatic way His own direct personality as the Author of our sanctification. It is not the work of man nor means, nor of our own strugglings, but His own prerogative. It is the gift of the Holy Spirit, the fruit of the Spirit, the grace of the Lord Jesus Christ, the prepared inheritance of all who will enter in, the great obtainment of faith, not the attainment of works. It is divine holiness, not human self-improvement or perfection. It is the inflow into man's being of the life and purity of the infinite, eternal and Holy One, bringing His own perfection and working out in us His own will.
How easy, how spontaneous, how delightful this heavenly way of holiness! Surely it is a "highway" and not the low way of man's vain and fruitless mortification. It is God's great elevated railway, sweeping over the heads of the struggling throngs who toil along the lower pavement when they might be borne along on His ascension pathway, by His own Almighty impulse. It is God's great elevator, carrying us up to the higher chambers of His palace without our laborious efforts, while others struggle up the winding stairs and faint by the way. It is God's great tidal wave bearing up the stranded ship until she floats above he bar without straining timbers or struggling seamen, instead of the ineffectual and toilsome efforts of the struggling crew and the strain of the engines, which had tried in vain to move her an inch until that heavenly impulse lifted her by its own attraction. It is God's great law of gravitation lifting up, by the way of sunbeams, a mighty iceberg that a million men could not raise a single inch, but that melts away before the warmth of the sunshine and rises in clouds of evaporation to meet its embrace until that cold and heavy mass is floating in fleecy clouds of glory in the blue ocean of the sky.
How easy all this! How mighty! How simple! How divine! Beloved, have you come into the divine way of holiness? If you have, how your heart must swell with gratitude as it echoes the truths of the words you have just read! If you have not, do you not long for it and will you not now unite in the prayer of our text that the very God of peace will sanctify you wholly?
~A. B. Simpson~
(continued with # 3 - "The Nature of Sanctification")