John MacArthur and R. C. Sproul on Living the Doctrines of Grace 2
Before addressing the doctrine of soteriology, it is necessary to consider that the driving purpose for which God saves his people is in accordance with his ultimate purpose for all things—namely, to bring glory and honor to himself.
Because of the sufficiency of Christ’s atoning work, if a believer is asked when God saved him, there is a sense in which he ought to reply, “Two thousand years ago.” And yet no one comes into this world saved. We are all brought forth in iniquity (Ps. 51:5), dead in our trespasses and sins (Eph. 2:1), by nature children of wrath (Eph. 2:3), and enemies of God (Rom. 5:10; 8:7–8). Though all the blessings of salvation were purchased once for all at the cross, the people of God do not enjoy the benefits of Christ’s work until the Holy Spirit applies those blessings to individual believers—until they are born of the Spirit unto repentance and faith, are united to Christ, and are thereby justified, adopted, and set apart for a life of holiness and service to God. It is for this reason that we must distinguish between the accomplishment of redemption and the application of redemption.