“The Spirit’s gift of internal grace was defined by the Arminians as “moral suasion,” the bare bestowal of an understanding of God’s truth. This, they granted—indeed, insisted—does not of itself ensure that anyone will ever make the response of faith. But Calvinists define this gift as not merely an enlightening, but also a regenerating work of God in men, “taking away their heart of stone, and giving unto them a heart of flesh; renewing their wills, and by His almighty power determining them to that which is good; and effectually drawing them to Jesus Christ; yet so as they come most freely, being made willing by his grace.” Grace proves irresistible just because it destroys the disposition to resist.” - J.I. Packer, Introduction to “The Death of Death in the Death of Christ” by: John Owen, p. 7,8

"One view presents the three great acts of the Holy Trinity for the recovering of lost mankind—election by the Father, redemption by the Son, calling by the Spirit—as directed towards the same persons, and as securing their salvation infallibly. The other view gives each act a different reference (the objects of redemption being all mankind, of calling, those who hear the gospel, and of election, those hearers who respond), and denies that any man’s salvation is secured by any of them. The two theologies thus conceive the plan of salvation in quite different terms. One makes salvation depend on the work of God, the other on a work of man; one regards faith as part of God’s gift of salvation, the other as man’s own contribution to salvation; one gives all the glory of saving believers to God, the other divides the praise between God, Who, so to speak, built the machinery of salvation, and man, who by believing operated it." - J.I. Packer, Introduction to John Owen's "The Death of Death in the Death of Christ", p.4

“God calls a person to Christ by bringing them into contact with the gospel of Jesus Christ and then making their dead hearts alive so that they hear the gospel as irresistibly true and beautiful.

God calls a person to Christ by bringing them into the hearing, or the exposure or contact with the gospel (it could be a tract, it could be radio talk, it could be a sermon, it could be the Bible); he brings them into contact with the Word of God in the gospel of Christ Crucified and risen and He uses that word, in and through it, to make their dead, unbelieving, hostile hearts awaken and come alive so that they hear and see the gospel of Christ as irresistibly true and beautiful.” John Piper “All things for Good, Part 3a”, Desiring God Radio 3/28/07

"However this may be (and we shall say more about it later), the result of [omitting the truths of the doctrines of grace in our preaching] is that part of the biblical gospel is now preached as if it were the whole of that gospel; and a half-truth masquerading as the whole truth becomes a complete untruth." - J.I. Packer; Introductary Essay to John Owen's "The Death of Death in the Death of Christ", p. 2