This disposition, or preparation, justification itself follows, which is not merely the remission of sins, but also the sanctification and renewal of the inward man, through the voluntary reception of the grace and gifts, whereby man from unjust becomes just, and from an enemy a friend, that so he may be an heir according to the hope of eternal life.a Of this justification the causes are these: the final [cause] indeed is the glory of God and of Christ, and eternal life; while the efficient cause