In a letter from his Nazi prison cell, Dietrich Bonhoeffer spoke of how the Church has become disconnected from the gospel, of how a future church would need to be reborn out of "prayer and righteous acts." His letter was prompted by the baptism of a colleague's infant son. The German Church was worshiping and practicing its rituals, yet it was no longer the body of Christ. Bonhoeffer must have appreciated this passage from Isaiah, a passage that raises questions of when our how our worship begins to grate on God's ears.