The single word "therefore" in Ephesians 4:1 is one of the most consequential transitions in Paul's letters. After three chapters of uninterrupted theological declaration — election, redemption, mystery, prayer, doxology — Paul pivots to the practical. But the pivot is not a break. Everything that follows in chapters 4 through 6 is the lived consequence of what chapters 1 through 3 has established. The indicative of grace becomes the imperative of gospel conduct. "I therefore, a prisoner for the Lord, urge you to walk in a manner worthy (axios) of the calling to which you have been called" (4:1).
Ephesians 4–5
Unity and Maturity in the Body of Christ
Main Highlights
- Seven unities — one body, one Spirit, one Lord, one faith, one baptism, one God — are already given by the Spirit and are to be eagerly maintained, not manufactured.
- Christ's ascension gifts the church with apostles, prophets, evangelists, and shepherd-teachers whose purpose is equipping the whole people for the work of ministry.
- The old self — marked by futility, hardness of heart, and sensuality — is to be put off decisively, while the new self, created in God's likeness, is put on in its place.
- Christian marriage is a sign of the *mysterion* of Christ and the church: husbands are called to cruciform self-giving love as the standard, mirroring Christ's sacrifice for his bride.
The Seven Unities
Paul immediately grounds his appeal for unity not in human effort but in the irreducible oneness that already belongs to the body by the Spirit. The famous sevenfold list of 4:4–6 is a theological foundation, not merely an aspiration: "There is one body and one Spirit — just as you were called to the one hope that belongs to your call — one Lord, one faith, one baptism, one God and Father of all, who is over all and through all and in all."
Peter O'Brien notes that the sevenfold structure, moving from Spirit to Son to Father, mirrors Trinitarian reality and anchors unity in the character of God himself rather than in congregational management (The Letter to the Ephesians, PNTC, 1999, p. 282). Unity is not manufactured; it is to be "eager to maintain" what the Spirit has already created (4:3). The Greek oikodome — building up — appears as the organizing goal of this entire section: the community is a structure under construction, and every practice of unity serves that end.
What strikes us about the seven unities is how many of them are simply facts. One body. One Spirit. One Lord. One Father. Paul is not asking the Ephesians to create unity; he is asking them to preserve what is already real. The oneness is given. The eagerness to maintain it is what is required.
Gifted Leaders for a Maturing Body
The ascended Christ, Paul announces, has distributed gifts to his church. Citing Psalm 68, Paul describes Christ as the conquering king who "gave gifts to men" (4:8). Those gifts are persons: "he gave the apostles, the prophets, the evangelists, the shepherds and teachers" (4:11). Their purpose is defined precisely — "to equip the saints for the work of ministry, for building up (oikodome) the body of Christ" (4:12).
Harold Hoehner stresses the importance of the Greek syntax here: the equipping of the saints is not a separate activity from ministry and building — the leaders equip so that the saints themselves do the ministry (Ephesians, Baker, 2002, p. 549). The church does not have gifted leaders so that the leaders can do the work while the congregation watches. The goal is corporate maturity — "until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood, to the measure of the stature of the fullness (plēroma) of Christ" (4:13).
The Greek word teleios — mature, complete, full-grown — captures this goal. F.F. Bruce observes that Ephesians consistently measures Christian maturity not against a human standard but against Christ himself, which means the goal remains perpetually ahead, drawing the community forward (The Epistles to the Colossians, to Philemon, and to the Ephesians, NICNT, 1984, p. 351). The community that is growing is one that is "speaking the truth in love" and thereby growing "up in every way into him who is the head, into Christ" (4:15).
Put Off, Put On: The New Self
Paul moves from community to conduct with a sharp call to personal transformation. The old self — characterized by futility of mind, hardness of heart, and sensuality — is to be definitively "put off." The new self, "created after the likeness of God in true righteousness and holiness" (4:24), is to be "put on." The Greek verbs carry the force of clothing: believers are to strip off one garment and clothe themselves in another, a metaphor that likely echoes baptismal practice.
Specific vices give way to specific virtues: falsehood yields to truth; destructive anger yields to anger that does not become sin; stealing yields to honest labor and generosity; corrupting speech yields to words that build up and give grace. The section is strikingly relational — these are not merely private moral improvements but the habits of a community learning to live together as the body of Christ.
We find it significant that the instructions are so mundane: don't steal, tell the truth, watch your words, don't let anger simmer overnight. Paul has just been describing cosmic mysteries and the armor of God, and here he is saying: give to those in need and don't let the sun go down on your anger. The holy life happens in the ordinary moments.
Marriage as Mystical Sign
Chapter 5 closes with the household code, and it is easy to read the controversial parts — wives and husbands — without noticing what immediately precedes them. Paul arrives at the household code through 5:21: "submitting to one another out of reverence for Christ." Mutual submission is the umbrella. What follows for wives and husbands, children and parents, slaves and masters all falls underneath that heading. The code is embedded in a broader theology of mutual deference in the body of Christ.
Husbands are called to love their wives "as Christ loved the church and gave himself up for her" (5:25). The love Paul prescribes is not sentiment but cruciform self-giving. The standard is the cross — total self-offering for the sake of the other. The household code that looks, on the surface, like it privileges husbands places on them the most demanding requirement of all.
Then Paul reveals the deeper logic: "This mystery (mysterion) is profound, and I am saying that it refers to Christ and the church" (5:32). The Greek word mysterion — the same term used in chapter 3 for the inclusion of the Gentiles — now appears in the context of marriage. O'Brien argues that Paul is not merely using marriage as an analogy for Christ and the church; rather, the marriage of Christ and the church is the reality of which human marriage is an enacted sign and testimony (p. 424). The verb plēroō — to fill — recurs in 5:18, where Paul commands believers to be filled with the Spirit, a filling that overflows into singing, thanksgiving, and mutual submission (5:19–21).
We keep coming back to the way Paul grounds the marriage instruction in the same word he used for the cosmic mystery of Jew and Gentile unified: mysterion. Marriage is not just a human institution — it is a sign pointing at something larger. That does not make it less important. It makes every marriage, in some sense, a proclamation.
Last updated: March 3, 2026.
Scripture quotations are from the ESV® Bible (The Holy Bible, English Standard Version®), © 2001 by Crossway, a publishing ministry of Good News Publishers.