Brothers and sisters:
I kneel before the Father,
from whom every family in heaven and on earth is named,
that he may grant you in accord with the riches of his glory
to be strengthened with power through his Spirit in the inner self,
and that Christ may dwell in your hearts through faith;
that you, rooted and grounded in love,
may have strength to comprehend with all the holy ones
what is the breadth and length and height and depth,
and to know the love of Christ that surpasses knowledge,
so that you may be filled with all the fullness of God.
Now to him who is able to accomplish far more than all we ask or imagine,
by the power at work within us,
to him be glory in the Church and in Christ Jesus
to all generations, forever and ever. Amen.
3:14–21 The apostle prays that those he is addressing may, like the rest of the church, deepen their understanding of God’s plan of salvation in Christ. It is a plan that affects the whole universe (Eph 3:15) with the breadth and length and height and depth of God’s love in Christ (Eph 3:18) or possibly the universe in all its dimensions. The apostle prays that they may perceive the redemptive love of Christ for them and be completely immersed in the fullness of God (Eph 3:19). The prayer concludes with a doxology to God (Eph 3:20–21).
3:14–15 Every family: in the Greek there is wordplay on the word for the Father (patria, patēr). The phrase could also mean “God’s whole family” (cf. Eph 2:21).
“that Christ may dwell in your hearts through faith; that you, rooted and grounded in love, may have strength to comprehend with all the holy ones what is the breadth and length and height and depth.”
St Paul asks God to give Christians understanding of the “mystery of Christ”, which essentially is the outcome of his love. In referring to the vast dimensions of this mystery he uses an enigmatic phrase—“the breadth and length and height and depth”. These and similar terms were used by Stoic philosophy to designate the cosmos as a whole. Here they express the immense scale of the “mystery” which embraces the entire plan of salvation, the actions of Christ and the activity of the Church. St Augustine interpreted these words as referring to the cross, the instrument of salvation which Christ used to show the full extent of his love.
St Paul may indeed be trying to sum up all the richness of the “mystery” of Christ in a graphic way—in terms of a cross whose extremities reach out in all four directions seeking to embrace the whole world. The blood which our Lord shed on the cross brought about the Redemption, the forgiveness of sins (cf. Eph 1:7). It did away with hostility, reconciling all men and assembling them into one body (cf. Eph 2:15–16), the Church. Therefore the cross is an inexhaustible source of grace, the mark of the true Christian, the instrument of salvation for all. When, through the action of Christians, the cross of Christ is made present at all the crossroads of the world, then is that “mystery” implemented whose purpose it is to “unite all things in Christ” (cf. Eph 1:10).
May the virtues of faith, hope, and love go with you today – DV.
 Donald Senior, John J. Collins, and Mary Ann Getty, eds., The Catholic Study Bible, 2nd Ed.: Notes, 2nd ed., vol. 2 (New York: Oxford University Press, 2011), 1658.
 Saint Paul’s Captivity Letters, The Navarre Bible (Dublin; New York: Four Courts Press; Scepter Publishers, 2005), 52.