Research demonstrates that the global majority of humans is deeply concerned about the habitability of life on earth. For Christians, their relationship with the earth is (also) a matter of faith. When using theological language to express and shape this relationship, particularly in response to their ecological awareness and desire for transformation, they use notions from various language fields, sometimes mixing discourses, e.g. using 'nature' and 'creation' as synonyms. This paper addresses the question of how to speak theologically in a responsible way without falling into the anthropocentric trap that has led to the climate and ecological crises that we are now facing. As part of an eco-sensitive and decolonial reorientation of theology, it examines two cases of the creation care discourse: the formal theological voice of the consecutive popes Francis and Leo, and the operant theological voice of the Dutch Christian network organisation of Green Churches. The paper offers a fundamental theological reflection on the relationship between God, humanity and the world by evaluating the theological bottleneck of 'human care for creation' that motivates and encourages people to ecological transformation.