And the peace of God Some, by turning the future tense into the optative mood, convert this statement into a prayer, but it is without proper foundation. For it is a promise in which he points out the advantage of a firm confidence in God, and invocation of him. "If you do that," says he, "the peace of God will keep your minds and hearts." Scripture is accustomed to divide the soul of man, as to its frailties, into two parts -- the mind and the heart. The mind means the understanding, while the heart denotes all the disposition or inclinations. These two terms, therefore, include the entire soul, in this sense, -- "The peace of God will guard you, so as to prevent you from turning back from God in wicked thoughts or desires." It is on good ground that he calls it the peace of God, inasmuch as it does not depend on the present aspect of things, [1] and does not bend itself to the various shiftings of the world, [2] but is founded on the firm and immutable word of God. It is on good grounds, also, that he speaks of it as surpassing all understanding or perception, for nothing is more foreign to the human mind, than in the depth of despair to exercise, nevertheless, a feeling of hope, in the depth of poverty to see opulence, and in the depth of weakness to keep from giving way, and, in fine, to promise ourselves that nothing will be wanting to us when we are left destitute of all things; and all this in the grace of God alone, which is not itself known otherwise than through the word, and the inward earnest of the Spirit.

Footnotes

1 - "De ces chc.ses basses;" -- "Of these low things."

2 - "N'est point en branle pour chanceler selon les changemens diuers du monde;" -- "Is not in suspense so as to turn about according to the various shiftings of the world."

And the peace of God - The peace which God gives. The peace here particularly referred to is that which is felt when we have no anxious care about the supply of our needs, and when we go confidently and commit everything into the hands of God. "Thou wilt keep him in perfect peace whose mind is stayed on thee;" Isaiah 26:3; see the notes at John 14:27.
Which passeth all understanding - That is, which surpasses all that people had conceived or imagined. The expression is one that denotes that the peace imparted is of the highest possible kind. The apostle Paul frequently used terms which had somewhat of a hyperbolical cast (see the notes on Ephesians 3:19; compare John 21:25, and the language here is that which one would use who designed to speak of that which was of the highest order. The Christian, committing his way to God, and feeling that he will order all things aright, has a peace which is nowhere else known. Nothing else will furnish it but religion. No confidence that a man can have in his own powers; no reliance which he can repose on his own plans or on the promises or fidelity of his fellow-men, and no calculations which he can make on the course of events, can impart such peace to the soul as simple confidence in God.
Shall keep your hearts and minds - That is, shall keep them from anxiety and agitation. The idea is, that by thus making our requests known to God, and going to him in view of all our trials and wants, the mind would be preserved from distressing anxiety. The way to find peace, and to have the heart kept from trouble, is thus to go and spread out all before the Lord; compare Isaiah 26:3-4, Isaiah 26:20; Isaiah 37:1-7. The word rendered here "shall keep," is a military term, and means that the mind would be guarded as a camp or castle is. It would be preserved from the intrusion of anxious fears and alarms.
Through Christ Jesus - By his agency, or intervention. It is only in him that the mind can be preserved in peace. It is not by mere confidence in God, or by mere prayer, but it is by confidence in God as he is revealed through the Redeemer, and by faith in him. Paul never lost sight of the truth that all the security and happiness of a believer were to be traced to the Saviour.

And the peace of God - That harmonizing of all passions and appetites which is produced by the Holy Spirit, and arises from a sense of pardon and the favor of God;
Shall keep your hearts - Φρουρησει· Shall keep them as in a strong place or castle. Your hearts - the seat of all your affections and passions, and minds - your understanding, judgment, and conscience through Christ Jesus; by whom ye were brought into this state of favor, through whom ye are preserved in it, and in whom ye possess it; for Christ keeps that heart in peace in which he dwells and rules. This peace passeth all understanding; it is of a very different nature from all that can arise from human occurrences; it is a peace which Christ has purchased, and which God dispenses; it is felt by all the truly godly, but can be explained by none; it is communion with the Father, and his Son Jesus Christ, by the power and influence of the Holy Ghost.

And the (g) peace of God, which passeth all understanding, shall keep your (h) hearts and minds through Christ Jesus.
(g) That great quietness of mind, which God alone gives in Christ.
(h) He divides the mind into the heart, that is, into that part which is the seat of the will and affections, and into the higher part, by which we understand and reason about matters.

And the peace of God which passeth all understanding,.... Not that peace which God calls his people to among themselves in their effectual calling; and which he requires of them to cultivate and maintain; and which he encourages in them by the promise of his gracious presence among them; and which indeed he is the author of, and therefore is so called, Colossians 3:15; and which may be said to surpass or exceed all speculative knowledge, and understanding; for the one puffs up and profits nothing, but the other edifies; and much less that peace which God has in himself, who is all peace and love, and which passes all understanding, human and angelic; but either that peace which is made with God by the blood of Christ, and is published in the Gospel of peace, which passes and surprises all understanding of men and angels, that it should be; that the thoughts of God should be concerning it from everlasting; that a council of peace should be called and held between the eternal Three, and a covenant of peace entered into; that Christ should be appointed the peace maker, and the chastisement of it laid on him; that he should make it by the blood of his cross, and for men, while enemies to God and to himself: or else that peace of conscience, which arises from a view of peace made by Christ; of justification by his righteousness, and atonement by his sacrifice; and which may be called "the peace of Christ", as the Alexandrian copy reads; both because it is founded upon, and springs from him, and is what he is the donor of: and this is what passes the understanding of every natural man; he knows nothing of this peace, what this tranquillity of mind means; he intermeddles not with this joy; it is unaccountable to him how it should be, that such then should have peace, who have so much trouble, are so much reproached, afflicted, and persecuted, and yet have peace in Christ, while they have tribulation in the world; which
shall keep your hearts and minds through Jesus Christ, or "in Christ Jesus": some read these words prayer wise, or as a wish, "let it", or "may it keep", so the Vulgate Latin; but they are rather a promise, encouraging the saints to the discharge of the above duties; as rejoicing always in the Lord, showing their moderation to all men, avoiding anxious care, and betaking themselves at all times, on all occasions, to prayer to God; in which way they may expect peace, and such as will be of that see vice to them, as here expressed; that is, be a means of their final perseverance; for the peace of God, in either sense, is a preservation of the saints: peace made with God secures them in Christ from all condemnation by the law, sin, Satan, the world, or their own hearts; and peace in their own souls, on so good a foundation as it is, keeps them through Christ as in a garrison, from being overset with the troubles of the world, or the temptations of Satan; and is a means of preserving them from being carried away with the errors and heresies of the wicked, having a witness to truth within themselves; and from every evil way and work, from profaneness and immorality; the grace of God teaching them, and the love of Christ constraining them, which is shed abroad in their hearts, to live and act otherwise.

And--The inseparable consequence of thus laying everything before God in "prayer with thanksgiving."
peace--the dispeller of "anxious care" (Philippians 4:6).
of God--coming from God, and resting in God (John 14:27; John 16:33; Colossians 3:15).
passeth--surpasseth, or exceedeth, all man's notional powers of understanding its full blessedness (1-Corinthians 2:9-10; Ephesians 3:20; compare Proverbs 3:17).
shall keep--rather, "shall guard"; shall keep as a well-garrisoned stronghold (Isaiah 26:1, Isaiah 26:3). The same Greek verb is used in 1-Peter 1:5. There shall be peace secure within, whatever outward troubles may besiege.
hearts and minds--rather, "hearts (the seat of the thoughts) and thoughts" or purposes.
through--rather as Greek, "in Christ Jesus." It is in Christ that we are "kept" or "guarded" secure.

And the peace of God - That calm, heavenly repose, that tranquility of spirit, which God only can give. Which surpasseth all understanding - Which none can comprehend, save he that receiveth it. Shall keep - Shall guard, as a garrison does a city. Your hearts - Your affections. Your minds - Your understandings, and all the various workings of them; through the Spirit and power of Christ Jesus, in the knowledge and love of God. Without a guard set on these likewise, the purity and vigour of our affections cannot long be preserved.