Ephesians 2:5

Even when we were dead in sins (See Gill on Ephesians 2:1).

Hath quickened us together with Christ:
which may be understood either of regeneration, when a soul that is dead in a moral or spiritual sense, is quickened and made alive; a principle of life is infused, and acts of life are put forth; such have their spiritual senses, and these in exercise; they can feel the load and weight of sin; see their lost state and condition, the odiousness of sin, and the beauty of a Saviour, the insufficiency of their own righteousness, and the fulness and suitableness of Christ's; breathe after divine and spiritual things; speak in prayer to God, and the language of Canaan to fellow Christians; move towards Christ, exercise grace on him, act for him, and walk on in him: and this life they have not from themselves, for previous to it they are dead, and in this quickening work are entirely passive; nor can regenerate persons quicken themselves, when in dead and lifeless frames, and much less unregenerate sinners; but this is God's act, the act of God the Father; though not exclusive of the Son, who quickens whom he will; nor of the Spirit, who is the Spirit of life from Christ; and it is an instance of the exceeding greatness, both of his power and love; and this may be said to be done with Christ, because he is the procuring and meritorious cause of it, by his death and resurrection from the dead; and is the author and efficient cause of it; and he is the matter of it, it is not so much the quickened persons that live, as Christ that lives in them, and it is the same life he himself lives; and because he lives, they shall live also; it is in him as in the fountain, and in them as in the stream: or else this may be understood of justification; men are dead in a legal sense, and on account of sin, are under the sentence of death; though they naturally think themselves alive, and in a good state; but when the Spirit of God comes, he strikes dead all their hopes of life by a covenant of works; not merely by letting in the terrors of the law upon the conscience, but by showing the spirituality of it, and the exceeding sinfulness of sin; and how incapable they are of satisfying the law, for the transgressions of it; and then he works faith in them, whereby they revive and live; they see pardon and righteousness in Christ, and pray for the one, and plead the other; and also lay hold and live upon the righteousness of Christ, when the Spirit seals up the pardon of their sins to them, and passes the sentence of justification on them, and so they reckon themselves alive unto God; and this is the justification of life, the Scripture speaks of; and this is in consequence of their being quickened with Christ, at the time of his resurrection; for when he rose from the dead, they rose with him; when he was justified, they were justified in him; and in this sense when he was quickened, they were quickened with him:

by grace ye are saved:
the Claromontane copy and the Vulgate Latin version read, "by whose grace"; and the Arabic and Ethiopic versions, "by his grace"; either by the grace of him that quickens, or by the grace of Christ with whom they were quickened; the Syriac version renders it, "by his grace he hath redeemed us"; which seems to refer to the redeeming grace of Christ; and so the Ethiopic version, "and hath delivered us by his grace"; and there is a change of the person into "us", which seems more agreeable to what goes before, and follows after; (See Gill on Ephesians 2:8).