This article argues that views of sin and salvation are shaped by one's view of God. Thus, whenever it is thought that God is a metaphor that theologians can change to attain a desired social or psychological result, then the true meaning of sin and salvation are lost. Relying on Karl Barth's view of Jesus as the Judge judged in our place, this article argues against ideas that sin can no longer be understood as self-will, and that salvation must be understood only as our working for a better world. Such views fail to recognise that, since only God can reveal God, the true meaning of sin is and remains most visible today in our attempts to redefine God and salvation in social and psychological rather than strictly theological terms.