According to the working. Some consider this clause as referring solely to the word believe, which comes immediately before it; but I rather view it as an additional statement, tending to heighten the greatness of the power, as a demonstration, or, if you prefer it, an instance and evidence of the efficacy of the power. The repetition of the word power, (dunameos) has the appearance of being superfluous; but in the former case it is restricted to one class, -- in the next, it has a general application. Paul, we find, never thinks that he can say enough in his descriptions of the Christian calling. And certainly the power of God is wonderfully displayed, when we are brought from death to life, and when, from being the children of hell, we become the children of God and heirs of eternal life. Foolish men imagine that this language is absurdly hyperbolical; but godly persons, who are engaged in daily struggles with inward corruption, have no difficulty in perceiving that not a word is here used beyond what is perfectly just. As the importance of the subject cannot be too strongly expressed, so our unbelief and ingratitude led Paul to employ this glowing language. We never form adequate conceptions of the treasure revealed to us in the gospel; or, if we do, we cannot persuade ourselves that it is possible for us to do so, because we perceive nothing in us that corresponds to it, but everything the reverse. Paul's object, therefore, was not only to impress the Ephesians with a deep sense of the value of Divine grace, but also to give them exalted views of the glory of Christ's kingdom. That they might not be cast down by a view of their own unworthiness, he exhorts them to consider the power of God; as if he had said, that their regeneration was no ordinary work of God, but was an astonishing exhibition of his power. According to the efficacy of the power of his strength. There are three words here, on which we may make a passing remark. We may view strength as the root, -- power as the tree, -- and efficacy as the fruit, or the stretching out of the Divine arm which terminates in action.

And what is the exceeding greatness of his power - On the language used here, compare the notes at 2-Corinthians 4:17. There is much emphasis and energy of expression here, as if the apostle were laboring under the greatness of his theme, and wanted words to express the magnitude of his conception. This is the "third" thing which he was particularly desirous they should know - that they should be fully acquainted with the "power" of God in the salvation of people. He refers not merely to the power which he had evinced in their salvation, but also to what the gospel was "able" to accomplish, and which they might yet experience. The "power" referred to here as exercised toward believers does not refer to one thing merely. It is the whole series of the acts of power toward Christians which results from the work of the Redeemer. There was power exerted in their conversion. There would be power exerted in keeping them. There would be power in raising them up from the dead, and exalting them with Christ to heaven. The religion which they professed was a religion of "power." In all the forms and stages of it the power of God was manifested toward them, and would be until they reached their final inheritance.
To us-ward - Toward us, or in relation to us.
Who believe - Who are Christians.
According to the working of his mighty power - Margin, The might of his power. This should be taken with the clause in the following verse, "which he wrought in Christ;" and the meaning is, that the power which God has exerted in us is in accordance with the power which was shown in raising up the Lord Jesus. It was the proper result of that, and was power of a similar kind. The same power is requisite to convert a sinner which is demanded in raising the dead. Neither will be accomplished but by omnipotence (see the notes, Ephesians 2:5); and the apostle wished that they should be fully apprised of this fact, and of the vast "power" which God had put forth in raising them up from the death of sin. To illustrate this sentiment is one of his designs in the following verses; and, hence, he goes on to show that people before their conversion were "dead in trespasses and sins;" that they had no spiritual life; that they were the "children of wrath;" that they were raised up from their death in sin by the same power which raised the Lord Jesus from the grave, and that they were wholly saved by grace; Ephesians 2:1-10. In order to set this idea of the "power" which God had put forth in their regeneration in the strongest light, he goes into a magnificent description of the resurrection and exaltation of the Lord Jesus, and shows how that was connected with the renewing of Christians. God had set him over all things. He had put all things under his feet, and had made principalities and dominions everywhere subject to him. In this whole passage Ephesians 1:19-23; Ephesians 2:1-10, the main thing to be illustrated is the power which God has shown in renewing and saving his people; and the leading sentiment is, that the same power is evinced in that which was required to raise up the Lord Jesus from the dead, and to exalt him over the universe.

The exceeding greatness of his power - As the apostle is here speaking of the glorious state of believers after death, the exceeding greatness of his power, or that power which surpasses all difficulties, being itself omnipotent, is to be understood of that might which is to be exerted in raising the body at the last day; as it will require the same power or energy which he wrought in Christ, when he raised his body from the grave, to raise up the bodies of all mankind; the resurrection of the human nature of Christ being a proof of the resurrection of mankind in general.
According to the working of his mighty power - Κατα την ενεργειαν του κρατους της ισχυος αυτου· According to the energy of the power of his might. We may understand these words thus: Might, ισχυς, is the state or simple efficiency of this attribute in God; Power, κρατος, is this might or efficiency in action; Energy, ενεργεια, is the quantum of force, momentum, or velocity, with which the power is applied. Though they appear to be synonymous terms they may be thus understood: passive power is widely different from power in action; and power in action will be in its results according to the energy or momentum with which it is applied. The resurrection of the dead is a stupendous work of God; it requires his might in sovereign action; and when we consider that all mankind are to be raised and changed in a moment, in the twinkling of an eye, then the momentum, or velocity, with which the power is to be applied must be inconceivably great. All motion is in proportion to the quantity of matter in the mover, and the velocity with which it is applied. The effect here is in proportion to the cause and the energy he puts forth in order to produce it. But such is the nature of God's power in action, that it is perfectly inconceivable to us; and even these astonishingly strong words of the apostle are to be understood as used in condescension to human weakness.

(19) And what [is] the exceeding greatness of his power to us-ward who believe, according to the working of his mighty power,
(19) The excellency of faith is declared by the effects, because the mighty power of God is set forth and shown in them.

And what is the exceeding greatness of his power to us-ward who believe,.... The objects of the divine power here intended, are believers in Christ; which distinguishes this power from that which was put forth in creation, and from that which will be displayed in the resurrection of the dead, and from the power of divine wrath, which will appear in the damnation of sinners; and shows, that this power is that which is exerted in the implantation of faith, and in the continuance of it, and in the finishing of that work; and that this is a great power, an exceeding great one, a super eminent one; which is attended with energy and efficacy, and is irresistible and insuperable: the greatness of this power as displayed in the work of conversion and faith appears, if it be considered what the work itself is called, a creation, a resurrection from the dead, a regeneration, and a transformation of the man into another man, which must needs require almighty power; as well as what is then done, some things are removed, Satan is dispossessed, the stony heart is taken away, the enmity is slain, the old man is put down from his throne, and put off with his deeds; and there are some things wrought, Christ is formed in the soul, his grace is implanted, his image is stamped on, a new heart is given, and principles of light and life, of grace and holiness are put; the understanding is enlightened, the will is subdued, the affections are set on other objects, and the mind and conscience are cleansed and purified; and the means of this are the ministers, and ministry of the word, which are weak, foolish, and contemptible, in the eyes of men; to which may be added, the opposition made both from within and from without, from a sinful heart, a tempting devil, and an ensnaring, reproaching, and persecuting world: so that this work of faith cannot be ascribed to anything short of the exceeding greatness of divine power; and which is seen in supporting faith when it is wrought, under great discouragements; in delivering believers out of divers temptations; in assisting them to discharge their duty, and in their final perseverance: and to increase the idea of this power it is added,
according to the working of his mighty power, or "according to the energy of the might of his power": the strength of his power, in all the mighty energy of it, is exerted towards and upon believers; and which they should know, own, and acknowledge, to the glory of the grace of God: and this is in proportion, and agreeably to that power.

exceeding--"surpassing."
power to us-ward who believe--The whole of the working of His grace, which He is carrying on, and will carry on, in us who believe. By the term "saints" (Ephesians 1:18), believers are regarded as absolutely perfected, and so as being God's inheritance; in this verse, as in the course of fighting the good fight of faith.
according to--in accordance wit,h, what might be expected from.
working--Greek, "the energizing"; translate, "the effectual working" (Ephesians 3:7). The same superhuman power was needed and exerted to make us believe, as was needed and exerted to raise Christ from the dead (Ephesians 1:20). Compare Philippians 3:10, "the power of His resurrection" (Colossians 2:12; 1-Peter 1:3-5).
of his mighty power--Greek, "of the strength of His might."

And what the exceeding greatness of his power toward us who believe - Both in quickening our dead souls, and preserving them in spiritual life. According to the power which he exerted in Christ, raising him from the dead - By the very same almighty power whereby he raised Christ; for no less would suffice.