Gerhard O. Forde:

Of course our theologian of glory may well grant that we need the help of grace. The only dispute, usually, will be about the degree of grace needed. If we are a “liberal,” we will opt for less grace and tend to define it as some kind of moral persuasion or spiritual encouragement. If we are more “conservative” and speak even of the depth of human sin, we will tend to escalate the degree of grace needed to the utmost. But the hallmark of a theology of glory is that it will always consider grace as something of a supplement to whatever is left of human will and power. It will always, in the end, hold out for some free will. Theology then becomes the business of making theological explanations attractive to the will.

That last line is a kicker.