The Third and Fourth Heads of Doctrine: Human Corruption, Conversion to God, and the Way It Occurs
Article 11: The Holy Spirit’s Work in Conversion
Moreover, when God carries out this good pleasure in his chosen ones, or works true conversion in them, he not only sees to it that the gospel is proclaimed to them outwardly, and enlightens their minds powerfully by the Holy Spirit so that they may rightly understand and discern the things of the Spirit of God, but, by the effective operation of the same regenerating Spirit, he also penetrates into the inmost being of man, opens the closed heart, softens the hard heart, and circumcises the heart that is uncircumcised. He infuses new qualities into the will, making the dead will alive, the evil one good, the unwilling one willing, and the stubborn one compliant; he activates and strengthens the will so that, like a good tree, it may be enabled to produce the fruits of good deeds.
Article 12: Regeneration a Supernatural Work
And this is the regeneration, the new creation, the raising from the dead, and the making alive so clearly proclaimed in the Scriptures, which God works in us without our help. But this certainly does not happen only by outward teaching, by moral persuasion, or by such a way of working that, after God has done his work, it remains in man’s power whether or not to be reborn or converted. Rather, it is an entirely supernatural work, one that is at the same time most powerful and most pleasing, a marvelous, hidden, and inexpressible work, which is not lesser than or inferior in power to that of creation or of raising the dead, as Scripture (inspired by the author of this work) teaches. As a result, all those in whose hearts God works in this marvelous way are certainly, unfailingly, and effectively reborn and do actually believe. And then the will, now renewed, is not only activated and motivated by God but in being activated by God is also itself active. For this reason, man himself, by that grace which he has received, is also rightly said to believe and to repent.