Luther counsels the cultivation of prayer as a habit through regular discipline. He proposes praying twice daily. “It is a good thing to let prayer be the first business of the morning and the last at night. Guard yourselves against those false, deluding ideas which tell you, ‘Wait a little while. I will pray in an hour; first I must attend to this or that.’”164 Luther is no romantic. He concludes, “We are as strictly and solemnly commanded to pray as in the others . . . not to kill, not to steal, etc.” We must pray whether we feel like it or not.
— Tim Keller in Prayer