The book of Isaiah is rich in natural imagery and would seem ideally suited to provide a source for an environmental ethic; but how do we use these images, given that they were metaphors for theological ideas? This booklet uses perceptual analysis to uncover an ecological understanding underlying the natural metaphors in Isaiah: respect for nature as God’s creation combined with a mandate for active management as responsible stewards. Creation is damaged through human sin but will be redeemed in the new creation.