Isaiah'S creation thought is often understood in one of three ways: as subordinate to salvation theology, as being a foundational concept, or as being inextricably linked to salvation theology. This study shows that Isaiah's creation thought is a foundational theme in Isaiah and occurs throughout the book, with a concentration in chaps. 40-55. It impacts the book structurally and conceptually, undergirding all other themes. Moreover, Isaiah?s creation thought is multidimensional and functions on the cosmological (primordial), historical, and eschatological levels. Isaiah's creation thought has important theological ramifications in so far as it is Isaiah's consummate conceptualisation of God. For Isaiah, God is first and foremost the creator and his consummate act is creation. Such an approach is highly significant to every student and teacher of the book of Isaiah.