“The earth is preserved by salt; the world lives because of these poor, ignoble, and weak people, whom the world rejects… (This salt) penetrates the entire earth. It is the earth’s substance. Thus, the disciples are focused not only on heaven, but are reminded of their mission on earth… (Christ) brings them into his work… The community of disciples must remain what Christ’s call has made them. That will be their true efficacy on earth and their preserving strength.” — Dietrich Bonhoeffer, Discipleship