Gerhard and Walther

Blessed and holy is the person who never forgets the final judgment, but instead remembers it every day—indeed, every hour and twinkling of the eye—so that at all times they hear the voice of that final trumpet saying: Wake up you dead people and come before the judgment. For this contemplation of the final judgment restrains us from all godlessness. Contrariwise, it also tugs, lures and drives us towards godliness.—Johann Gerhard, Schola Pietatis I:234.

In an unconverted person there is not even a glimmer of true goodness.—C. F. W. Walther, God Grant It!, p. 254.