(17) That Christ may dwell in your hearts by faith.--What that indwelling power is he now indicates, so passing to another Person of the Holy Trinity. It is (see Colossians 1:27) "Christ in you, the hope of glory." The indwelling of Christ (as here the construction of the original plainly shows) is not a consequence of the gift of the Spirit; it is identical with it, for the office of the Holy Spirit is to implant and work out in us the likeness of Christ. So in John 14:16-20, in immediate connection with the promise of the Comforter, we read: "I will not leave you orphaned; I will come to you." "Ye shall know that . . . ye are in me and I in you." Hence the life in the Spirit is described as "To me to live is Christ" (Philippians 1:21); "I live, yet not I, but Christ liveth in me" (Galatians 2:20). Faith is simply the condition of that indwelling of Christ (comp. Ephesians 2:8), the opening of the door to Him that He may enter in.

The prayer is here complete, all that follows being but consequent from it. In accordance with the universal law of revelation, all is from the Father, all is through the Son vouchsafing to tabernacle in our humanity, all is by the Spirit effecting that indwelling of Christ in each individual soul.

That ye, being rooted and grounded in love.--The phrase "ye, being," &c., stands in the original before the word "that," as a kind of link between the previous clause and this, which seems to describe the consequence of the indwelling of Christ--viz., first love, next comprehension, and finally growth into the fulness of God.

The expression "rooted and grounded" (i.e., founded) contains the same mixture of metaphor as in 1Corinthians 3:9, of the tree and the building--a mixture so natural as to pass into common usage. (Comp. Colossians 2:7, "rooted and being built up in Him.") The idea implied in "rooted" is of the striking down deeper and spreading wider into the soil; in "founded" of the firm basis on which ultimately we rest. "In love:" Love is not itself the root or foundation (for this is Jesus Christ Himself), but the condition under which growth takes place. Generally that growth is upward, as in 1Corinthians 8:1 : "Knowledge puffeth up, but love buildeth up;" or, as in Ephesians 4:16, where the body is said "to build itself up in love." Here that growth is downward, deeper and deeper into the communion with God in Christ, as "faith is made perfect (or, efficient) by love." As in relation to man, so also to God, love is at once the recognition of an existing unity between spirit and spirit, and a means--probably the only means--of making that unity energetic and deepening it continually. Hence love is the first consequence of the indwelling of Christ in the soul; and by it the soul becomes rooted and grounded in the unity, given by that indwelling, with man and God.

Verse 17. - That Christ may dwell in your hearts by faith. Reversing the usual order, the prayer begins (ver. 16) by asking the blessing of the Third Person of the Godhead; now we have a cluster of petitions connected with the Second Person. The first of these is for the indwelling of Christ in their hearts, as opposed to mere occasional visits or influences from Christ; the instrument by which this blessing is attained being their faith. Christ exercising a constant power within them, both in the active and passive movements of the heart, giving the sense of pardon and acceptance, molding the will, sweetening the emotions, enlightening and confirming the conscience, purifying the whole springs and principles of action. This to be secured by their faith, opening the door, receiving Christ in all his fullness, resting and living on him, believing his promises, and longing for his appearing the second time. In order that ye, having been rooted and grounded in love. Two images are combined to make the idea emphatic - that of a tree and that of a building; denoting what is both the starting-point and the support of the Christian's life, viz. love. In what sense? The love of Christ is specified afterwards (ver. 19), but this may be as a pre-eminent branch of that manifold love which bears on the Christian life - the love of the Father, Son, and Holy Ghost; the love of the brethren to one another; and the reciprocal love evoked from the believer by the reception of this love. Evidently it is implied that the Christian life can begin and flourish only in such an atmosphere of love; as warm sunshine is needed to start and advance the life of a plant, so love is needed to start and carry on the life of the soul. Experience of Divine love is a great quickening and propelling power. "One glance of God, a touch of his love, will free and enlarge the heart, so that it can deny all and part with all and make an entire renunciation of all to follow him" (Archbishop Leighton).

3:13-19 The apostle seems to be more anxious lest the believers should be discouraged and faint upon his tribulations, than for what he himself had to bear. He asks for spiritual blessings, which are the best blessings. Strength from the Spirit of God in the inner man; strength in the soul; the strength of faith, to serve God, and to do our duty. If the law of Christ is written in our hearts, and the love of Christ is shed abroad there, then Christ dwells there. Where his Spirit dwells, there he dwells. We should desire that good affections may be fixed in us. And how desirable to have a fixed sense of the love of God in Christ to our souls! How powerfully the apostle speaks of the love of Christ! The breadth shows its extent to all nations and ranks; the length, that it continues from everlasting to everlasting; the depth, its saving those who are sunk into the depths of sin and misery; the height, its raising them up to heavenly happiness and glory. Those who receive grace for grace from Christ's fulness, may be said to be filled with the fulness of God. Should not this satisfy man? Must he needs fill himself with a thousand trifles, fancying thereby to complete his happiness?That Christ may dwell in your hearts by faith,.... This is another petition put up by the apostle for the Ephesians, which is for the inhabitation of Christ in them: the inhabitant Christ is he who dwells in the highest heavens, who dwells in the Father, and the Father in him, in whom all fulness dwells, the fulness of the Godhead, and the fulness of grace; so that those in whose hearts he dwells cannot want any good thing, must be in the greatest safety, and enjoy the greatest comfort and pleasure; and this inhabitation of Christ prayed for is not to be understood in such sense, as he dwells everywhere, being the omnipresent God; or as he dwells in the human nature; nor of his dwelling merely by his Spirit, but of a personal indwelling of his; and which is an instance of his special grace: he dwells in his people, as a king in his palace, to rule and protect them, and as a master in his family to provide for them, and as their life to quicken them; it is in consequence of their union to him, and is expressive of their communion with him, and is perpetual; where he once takes up his residence, he never totally and finally departs: the place where he dwells is not their heads, nor their tongues, but their hearts; and this is where no good thing dwells but himself and his grace; and where sin dwells, and where he is often slighted, opposed, and rebelled against: the means by which he dwells is faith; which is not the bond of union to Christ, nor the cause of his being and dwelling in the hearts of his people; but is the instrument or means by which they receive him, and retain him, and by which they have communion with him:

that ye being rooted and grounded in love; either in love to God, and one another; for faith and love go together; and love is sometimes weak, and needs establishing; and what serves to root and ground persons in it, are the discoveries of God's love, views of Christ's loveliness, the consideration of blessings received, and the communion they have with God, and Christ, and one another, and a larger insight into the doctrines of the Gospel: or rather in the love of God to them; which is the root and foundation of salvation; this is in itself immovable and immutable; but saints have not always the manifestations of it, and sometimes call it in question, and have need to be rooted and grounded in it; which is to have a lively sense of it, and to be persuaded of interest in it, and that nothing shall be able to separate from it.