11 Being strengthened with all power, according to his glorious might, for all endurance and patience with joy.
The second refrain describing the worthy life of a Christian is verse 11. This second refrain deals with the power that accompanies the knowledge of God’s will. The Christian is uniquely empowered by God, Himself. The power that accompanies the Christian life is not some sort of physical empowerment granting super-human strength or supernatural health. It is the power to endure. The power that the Christian is afforded is the power to withstand every trial. In truth, it is this power to endure that is the greatest power a persecuted Christian could ask for. The ability to see beyond circumstance and delight in suffering, the power to maintain faith in the face of certain death, the strength to press beyond all trial and revel in the goodness of God. This is the power Paul prays for. This is the power he exemplifies in his ministry and explains in Philippians 4.
Note the source of the power: “His glorious might.” It is not by one’s own strength or merit that the power to endure is granted. If it were, the Christian would be no better off than any other person. It is, rather, from the infinite power source of The Creator and Sustainer of all things that the believer draws their power. It is His glorious might that bestows the ability to endure with patience. It is because of His power that Christians are able to endure joyfully.
Consider that for a moment: the God of all things exercises His great might for the sake of His people. He makes available to His own, the infinite might that holds the stars in place. He provides power from His infinite resources with which He sustains all of creation. This God who sustains all things, commands the ocean’s movements, and holds the cosmos in place is certainly able to strengthen and hold in place the believer. What a tremendous power dwells inside the believer!
Paul does not pray for a portion of the power, but for all of it for the purpose of all endurance. Christians are not simply given strength for a moment or a portion. No, this is strength is sufficient for all. All power to face troubles and trials, all strength for the pursuit of holiness, all that is needed to overcome sin and press on. All: total, complete, everything necessary. All that is needed to endure is in the hands of the Father who dispenses that power. Not only does the strength empower endurance but also patience and that with joy.
Joy is a defining mark of Christianity. It is what distinguishes the Christian’s struggle from the struggle of the world without Christ. This joy is deep and abiding. It is profound and overcomes all difficulty. This joy is supernatural and amazing, but it is also subtle and often overlooked. The joy of a Christian is manifest in contentment and quiet peace. The joy of a Christian affords the believer the ability to look at every trial and say with confidence, “I need nothing but Christ!”
Take heart brothers and sisters in Christ. You have been given the power to endure and that power is supported by the strength of the prayers of the saints. Be bold in the gospel, be fearless in adversity, trust Jesus!
 For a more extensive discussion on the subject of Christian joy and happiness, I recommend Randy Alcorn’s book Happiness.