Gerhard and Walther

Prayer is not to work the lips of the mouth. Rather, it is a lifting up of the heart to God the Lord.—Johann Gerhard, Schola Pietatis II:123. 

If Christ is truly the Savior of the world, what help is He to a world that wants to know nothing about a Savior, that labors under the self-righteous delusion that it can redeem and reconcile itself?—C. F. W. Walther, God Grant It!, p. 349.