John Webster, professor of Systematic Theology at University of Aberdeen, provides another way of saying what I’ve been trying to say:
Evangelical sanctification is not only the holiness the gospel declares but also the holiness that the gospel commands, to which the creaturely counterpart is action. Holiness is indicative; but it is also imperative; indeed, it is imperative because it is the indicative holiness of the triune God whose work of sanctification is directed towards the renewal of the creature’s active life of fellowship with him.
Indicative holiness is no mere inert state in which we find ourselves placed and which requires nothing of us beyond passive acquiescence. Indicative holiness is the revelation of the inescapable conclusion under which our lives have been set—namely, that as those elected, justified, and sanctified by the mercy of God, we are equally those who are determined for the active life of holiness. Because grace is ‘double grace’, it is election to activity.
Double grace is always, of course, wholly grace; the active life of holiness is never apart from faith’s assent to God’s sheer creativity. But in a Christian theology of the holy life, grace is duplex, extending into the generation, evocation and preservation of action. ‘Grace’—which is, of course, nothing other than a shorthand term for the great history of God’s mercy, at whose centre is the passion and resurrection of Christ and his sending of the Spirit—is the gift of life, and life is active holiness in company with the holy God. (Holiness, 87)