Gerhard and Walther

Eternal life is a rich harvest by which all the toils and labors of true believers, which they endured in this life, will be rewarded. If they want to share in this harvest, we must not forget to sow the seeds of good works in this life.—Johann Gerhard, Schola Pietatis I:285,86.

But when man fell into sin, a great, lamentable change took place. The love of God as the highest good and the love of his neighbor as himself ceased. Man retained his created heart with its longing, but he now filled his heart with another love: the love of the creature, of the perishable things of the world, even of sin itself.—C. F. W. Walther, God Grant It!, p. 285,286.