Ephesians 6:10

The Text

After pages of instruction about husbands and wives, children and parents, slaves and masters, Paul turns a corner with one word: "Finally." Everything he has said about ordinary households now gets its final framing in a single command: "be strong in the Lord, and in the strength of his might." Not be strong, full stop, as if courage were something you could squeeze out of yourself, but strong in the Lord, drawing on a power that belongs to someone else and is offered to you. It is the sentence that swings open the door to the armor, the wrestling, the standing firm. But before any of that equipment appears, there is only this: the strength you need is not yours, and it is available.

The Core

The Greek verb here is passive: endynamousthe, "be made strong." That grammar matters more than it looks. Paul does not tell you to generate resolve; he tells you to let yourself be strengthened by another. And notice the piling up of words for power in one short line, as if a single term could not carry the weight. This is the same might Paul has already described in this letter as the power that raised Christ from the dead and seated him above every authority. So the strength on offer is not a top-up of your willpower. It is resurrection power, lent to people who still lose their temper at breakfast. Christian endurance is therefore never self-improvement; it is dependence that holds its ground.

The Common Thread

"Be strong" is old language. Joshua hears it at the Jordan, David says it to Solomon before the temple is built, and every time it is spoken to someone standing at the edge of a task too large for them. The command always came with a reason attached: not because you are capable, but because the LORD goes with you. Paul takes that ancient formula and locates its strength precisely: in the Lord, meaning in the risen Christ in whom this whole letter says believers already sit. The battle Israel fought over land, the church now fights over allegiance, and the outcome has already been decided in a tomb outside Jerusalem. What is left for us is not conquest but holding the ground Christ has taken.

The Mirror

Read the verse honestly and it exposes two opposite instincts. The first is the one you would call a virtue: you handle it. You are the one others lean on, the one who answers the email at eleven at night, keeps the marriage civil, absorbs the aging parent's confusion without complaining. Paul's passive verb quietly dismantles that. You were never meant to be the source. The second instinct is the mirror image: you have already concluded you are too weak, too addicted, too tired, too far along in the same failure to bother trying again. That, too, this verse refuses, because the strength in question was never measured against your reserves. Notice where the command lands: right after slaves and masters, right in the middle of the least glamorous relationships you have. The evil day is often just Tuesday.

So today, before the noise starts: name out loud, alone, the one situation in which you are currently pretending to be strong. Say it plainly, then say the verse back over it: "be strong in the Lord, and in the strength of his might." Two minutes. Speak it, do not just think it.

The Intertext

Two lines throw light here. Paul writes elsewhere that he heard the Lord say, "My power is made perfect in weakness," which is the same logic from the inside: strength arrives at the point where self-sufficiency stops. And within this letter itself, Paul says he is "an ambassador in chains" who still needs prayer "that in it I may speak boldly, as I ought to speak." The man issuing the command to be strong is writing under guard and asking others to pray that his nerve holds. That is not a rhetorical flourish; it is the honest shape of the thing. Christian strength is not the absence of chains or fear. It is the boldness to speak and stand while both are real.

Context

Ephesus was a city of spiritual traffic: the temple of Artemis, amulets, curse tablets, professional magicians. Paul writes from imprisonment, probably Rome, to Christians who lived among neighbors convinced that unseen powers governed harvests, health and shipping. He does not tell them those powers are imaginary. He tells them they have been outranked. And he says it to a mixed congregation of Jews and Gentiles where the household was the basic unit of society, with a master's authority over slaves and children that we would find shocking. Paul has just reordered every one of those relationships around the fact that master and slave share one Master in heaven. Only then does he speak of war.

The Profile

Picture the audience: a slave who has just heard that his obedience is rendered to Christ, and a slave owner who has just been told to stop threatening. Both hear "be strong in the Lord" at the same moment. For the slave it means the strength to keep integrity where he has no power. For the owner it means the strength to relinquish power he legally holds. Neither could obey out of social capital. Both had to draw on the same borrowed might. That is what escapes us when we make this verse a private pep talk. It was addressed to a room of people whose loyalties to Christ were about to cost them something concrete, and who would need power greater than their status to pay it.

Reflection

Where in your week do you rely on strength that is genuinely yours, and what would change if that supply ran dry tomorrow?

If the slave and the master had to obey this command from opposite ends of the room, who in your life is being asked to be strong in a way you have never had to be?

Go deeper in Ephesians

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The Message of Ephesians

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God's new society: Stott at his very best on church and calling.

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Paul For Everyone: The Prison Letters

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Ephesians: An Introduction and Commentary

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A trusted Tyndale commentary: compact, careful and clear on every passage.

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Ephesians For You

Richard Coekin

Grace, church and spiritual battle made wonderfully practical.

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Ephesians

Klyne Snodgrass

Explains what it meant then, and bridges it honestly to life now.

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