Willpower has no defense against the careless word, the unguarded moment. The will has the same deficiency as the law -- it can deal only in externals.

It is easier to be silent altogether than to speak with moderation.

In efficacious grace we are not merely passive, nor yet does God do some and we do the rest. But God does all, and we do all. God produces all, we act all. For that is what produces, viz. our own acts. God is the only proper author and fountain; we only are the proper actors. We are in different respects, wholly passive and wholly active.