Ephesians 3:17

That--So that. dwell--abidingly make His abode (Joh 14:23). Where the Spirit is there Christ is (Joh 14:16, Joh 14:18). by faith--Greek, "through faith," which opens the door of the heart to Jesus (Joh 3:20). It is not enough that He be on the tongue, or flit through the brain: the heart is His proper seat [CALVIN]. "You being rooted and grounded in love" (compare Eph 3:19), is in the Greek connected with this clause, not with the clause, "that ye may be able to comprehend." "Rooted" is an image from a tree; "grounded" (Greek, "founder," "having your foundations resting on"), from a building (compare Notes,, see on Eph 2:20-21; Col 1:23; Col 2:7). Contrast Mat 13:6, Mat 13:21. "Love," the first-fruit of the Spirit, flowing from Christ's love realized in the soul, was to be the basis on which should rest their further comprehension of all the vastness of Christ's love.

This chapter consists of two parts. I. Of the account which Paul gives the Ephesians concerning himself, as he was appointed by God to be the apostle of the Gentiles (Eph 3:1-13). II. Of his devout and affectionate prayer to God for the Ephesians (Eph 3:14-21). We may observe it to have been very much the practice of this apostle to intermix, with his instructions and counsels, intercessions and prayers to God for those to whom he wrote, as knowing that all his instructions and teachings would be useless and vain, except God did co-operate with them, and render them effectual. This is an example that all the ministers of Christ should copy after, praying earnestly that the efficacious operations of the divine Spirit may attend their ministrations, and crown them with success.

3:17 Having Christ . . . make his home in your hearts is the source of spiritual power for life and ministry (see John 14:16-17, 23; 15:4-5; Gal 2:20).